21154896

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:729

約数の個数: 120

約数和(自身を含む): 69947904

約数和(自身を除く): 48793008

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 56, 62, 63, 72, 84, 93, 112, 124, 126, 144, 168, 186, 217, 248, 252, 279, 336, 372, 434, 496, 504, 558, 651, 677, 744, 868, 1008, 1116, 1302, 1354, 1488, 1736, 1953, 2031, 2232, 2604, 2708, 3472, 3906, 4062, 4464, 4739, 5208, 5416, 6093, 7812, 8124, 9478, 10416, 10832, 12186, 14217, 15624, 16248, 18956, 20987, 24372, 28434, 31248, 32496, 37912, 41974, 42651, 48744, 56868, 62961, 75824, 83948, 85302, 97488, 113736, 125922, 146909, 167896, 170604, 188883, 227472, 251844, 293818, 335792, 341208, 377766, 440727, 503688, 587636, 682416, 755532, 881454, 1007376, 1175272, 1322181, 1511064, 1762908, 2350544, 2644362, 3022128, 3525816, 5288724, 7051632, 10577448, 21154896]

約数ペア:

[(1, 21154896), (2, 10577448), (3, 7051632), (4, 5288724), (6, 3525816), (7, 3022128), (8, 2644362), (9, 2350544), (12, 1762908), (14, 1511064), (16, 1322181), (18, 1175272), (21, 1007376), (24, 881454), (28, 755532), (31, 682416), (36, 587636), (42, 503688), (48, 440727), (56, 377766), (62, 341208), (63, 335792), (72, 293818), (84, 251844), (93, 227472), (112, 188883), (124, 170604), (126, 167896), (144, 146909), (168, 125922), (186, 113736), (217, 97488), (248, 85302), (252, 83948), (279, 75824), (336, 62961), (372, 56868), (434, 48744), (496, 42651), (504, 41974), (558, 37912), (651, 32496), (677, 31248), (744, 28434), (868, 24372), (1008, 20987), (1116, 18956), (1302, 16248), (1354, 15624), (1488, 14217), (1736, 12186), (1953, 10832), (2031, 10416), (2232, 9478), (2604, 8124), (2708, 7812), (3472, 6093), (3906, 5416), (4062, 5208), (4464, 4739)]