20979648

素因数分解:

$2^6\times 3^5\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:117

約数の個数: 168

約数和(自身を含む): 66568320

約数和(自身を除く): 45588672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 71, 72, 76, 81, 96, 108, 114, 142, 144, 152, 162, 171, 192, 213, 216, 228, 243, 284, 288, 304, 324, 342, 426, 432, 456, 486, 513, 568, 576, 608, 639, 648, 684, 852, 864, 912, 972, 1026, 1136, 1216, 1278, 1296, 1349, 1368, 1539, 1704, 1728, 1824, 1917, 1944, 2052, 2272, 2556, 2592, 2698, 2736, 3078, 3408, 3648, 3834, 3888, 4047, 4104, 4544, 4617, 5112, 5184, 5396, 5472, 5751, 6156, 6816, 7668, 7776, 8094, 8208, 9234, 10224, 10792, 10944, 11502, 12141, 12312, 13632, 15336, 15552, 16188, 16416, 17253, 18468, 20448, 21584, 23004, 24282, 24624, 30672, 32376, 32832, 34506, 36423, 36936, 40896, 43168, 46008, 48564, 49248, 61344, 64752, 69012, 72846, 73872, 86336, 92016, 97128, 98496, 109269, 122688, 129504, 138024, 145692, 147744, 184032, 194256, 218538, 259008, 276048, 291384, 295488, 327807, 368064, 388512, 437076, 552096, 582768, 655614, 777024, 874152, 1104192, 1165536, 1311228, 1748304, 2331072, 2622456, 3496608, 5244912, 6993216, 10489824, 20979648]

約数ペア:

[(1, 20979648), (2, 10489824), (3, 6993216), (4, 5244912), (6, 3496608), (8, 2622456), (9, 2331072), (12, 1748304), (16, 1311228), (18, 1165536), (19, 1104192), (24, 874152), (27, 777024), (32, 655614), (36, 582768), (38, 552096), (48, 437076), (54, 388512), (57, 368064), (64, 327807), (71, 295488), (72, 291384), (76, 276048), (81, 259008), (96, 218538), (108, 194256), (114, 184032), (142, 147744), (144, 145692), (152, 138024), (162, 129504), (171, 122688), (192, 109269), (213, 98496), (216, 97128), (228, 92016), (243, 86336), (284, 73872), (288, 72846), (304, 69012), (324, 64752), (342, 61344), (426, 49248), (432, 48564), (456, 46008), (486, 43168), (513, 40896), (568, 36936), (576, 36423), (608, 34506), (639, 32832), (648, 32376), (684, 30672), (852, 24624), (864, 24282), (912, 23004), (972, 21584), (1026, 20448), (1136, 18468), (1216, 17253), (1278, 16416), (1296, 16188), (1349, 15552), (1368, 15336), (1539, 13632), (1704, 12312), (1728, 12141), (1824, 11502), (1917, 10944), (1944, 10792), (2052, 10224), (2272, 9234), (2556, 8208), (2592, 8094), (2698, 7776), (2736, 7668), (3078, 6816), (3408, 6156), (3648, 5751), (3834, 5472), (3888, 5396), (4047, 5184), (4104, 5112), (4544, 4617)]