20731656456

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{21661}}^1$

素因数の和:21897

約数の個数: 160

約数和(自身を含む): 66680834880

約数和(自身を除く): 45949178424

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 211, 216, 252, 324, 378, 422, 504, 567, 633, 648, 756, 844, 1134, 1266, 1477, 1512, 1688, 1899, 2268, 2532, 2954, 3798, 4431, 4536, 5064, 5697, 5908, 7596, 8862, 11394, 11816, 13293, 15192, 17091, 17724, 21661, 22788, 26586, 34182, 35448, 39879, 43322, 45576, 53172, 64983, 68364, 79758, 86644, 106344, 119637, 129966, 136728, 151627, 159516, 173288, 194949, 239274, 259932, 303254, 319032, 389898, 454881, 478548, 519864, 584847, 606508, 779796, 909762, 957096, 1169694, 1213016, 1364643, 1559592, 1754541, 1819524, 2339388, 2729286, 3509082, 3639048, 4093929, 4570471, 4678776, 5458572, 7018164, 8187858, 9140942, 10917144, 12281787, 13711413, 14036328, 16375716, 18281884, 24563574, 27422826, 31993297, 32751432, 36563768, 41134239, 49127148, 54845652, 63986594, 82268478, 95979891, 98254296, 109691304, 123402717, 127973188, 164536956, 191959782, 246805434, 255946376, 287939673, 329073912, 370208151, 383919564, 493610868, 575879346, 740416302, 767839128, 863819019, 987221736, 1151758692, 1480832604, 1727638038, 2303517384, 2591457057, 2961665208, 3455276076, 5182914114, 6910552152, 10365828228, 20731656456]

約数ペア:

[(1, 20731656456), (2, 10365828228), (3, 6910552152), (4, 5182914114), (6, 3455276076), (7, 2961665208), (8, 2591457057), (9, 2303517384), (12, 1727638038), (14, 1480832604), (18, 1151758692), (21, 987221736), (24, 863819019), (27, 767839128), (28, 740416302), (36, 575879346), (42, 493610868), (54, 383919564), (56, 370208151), (63, 329073912), (72, 287939673), (81, 255946376), (84, 246805434), (108, 191959782), (126, 164536956), (162, 127973188), (168, 123402717), (189, 109691304), (211, 98254296), (216, 95979891), (252, 82268478), (324, 63986594), (378, 54845652), (422, 49127148), (504, 41134239), (567, 36563768), (633, 32751432), (648, 31993297), (756, 27422826), (844, 24563574), (1134, 18281884), (1266, 16375716), (1477, 14036328), (1512, 13711413), (1688, 12281787), (1899, 10917144), (2268, 9140942), (2532, 8187858), (2954, 7018164), (3798, 5458572), (4431, 4678776), (4536, 4570471), (5064, 4093929), (5697, 3639048), (5908, 3509082), (7596, 2729286), (8862, 2339388), (11394, 1819524), (11816, 1754541), (13293, 1559592), (15192, 1364643), (17091, 1213016), (17724, 1169694), (21661, 957096), (22788, 909762), (26586, 779796), (34182, 606508), (35448, 584847), (39879, 519864), (43322, 478548), (45576, 454881), (53172, 389898), (64983, 319032), (68364, 303254), (79758, 259932), (86644, 239274), (106344, 194949), (119637, 173288), (129966, 159516), (136728, 151627)]