21399168

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:462

約数の個数: 128

約数和(自身を含む): 68544000

約数和(自身を除く): 47144832

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 32, 38, 42, 48, 56, 57, 64, 76, 84, 96, 112, 114, 128, 133, 152, 168, 192, 224, 228, 266, 304, 336, 384, 399, 419, 448, 456, 532, 608, 672, 798, 838, 896, 912, 1064, 1216, 1257, 1344, 1596, 1676, 1824, 2128, 2432, 2514, 2688, 2933, 3192, 3352, 3648, 4256, 5028, 5866, 6384, 6704, 7296, 7961, 8512, 8799, 10056, 11732, 12768, 13408, 15922, 17024, 17598, 20112, 23464, 23883, 25536, 26816, 31844, 35196, 40224, 46928, 47766, 51072, 53632, 55727, 63688, 70392, 80448, 93856, 95532, 111454, 127376, 140784, 160896, 167181, 187712, 191064, 222908, 254752, 281568, 334362, 375424, 382128, 445816, 509504, 563136, 668724, 764256, 891632, 1019008, 1126272, 1337448, 1528512, 1783264, 2674896, 3057024, 3566528, 5349792, 7133056, 10699584, 21399168]

約数ペア:

[(1, 21399168), (2, 10699584), (3, 7133056), (4, 5349792), (6, 3566528), (7, 3057024), (8, 2674896), (12, 1783264), (14, 1528512), (16, 1337448), (19, 1126272), (21, 1019008), (24, 891632), (28, 764256), (32, 668724), (38, 563136), (42, 509504), (48, 445816), (56, 382128), (57, 375424), (64, 334362), (76, 281568), (84, 254752), (96, 222908), (112, 191064), (114, 187712), (128, 167181), (133, 160896), (152, 140784), (168, 127376), (192, 111454), (224, 95532), (228, 93856), (266, 80448), (304, 70392), (336, 63688), (384, 55727), (399, 53632), (419, 51072), (448, 47766), (456, 46928), (532, 40224), (608, 35196), (672, 31844), (798, 26816), (838, 25536), (896, 23883), (912, 23464), (1064, 20112), (1216, 17598), (1257, 17024), (1344, 15922), (1596, 13408), (1676, 12768), (1824, 11732), (2128, 10056), (2432, 8799), (2514, 8512), (2688, 7961), (2933, 7296), (3192, 6704), (3352, 6384), (3648, 5866), (4256, 5028)]