21081456

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13309}}^1$

素因数の和:13334

約数の個数: 60

約数和(自身を含む): 64367160

約数和(自身を除く): 43285704

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 132, 144, 176, 198, 264, 396, 528, 792, 1584, 13309, 26618, 39927, 53236, 79854, 106472, 119781, 146399, 159708, 212944, 239562, 292798, 319416, 439197, 479124, 585596, 638832, 878394, 958248, 1171192, 1317591, 1756788, 1916496, 2342384, 2635182, 3513576, 5270364, 7027152, 10540728, 21081456]

約数ペア:

[(1, 21081456), (2, 10540728), (3, 7027152), (4, 5270364), (6, 3513576), (8, 2635182), (9, 2342384), (11, 1916496), (12, 1756788), (16, 1317591), (18, 1171192), (22, 958248), (24, 878394), (33, 638832), (36, 585596), (44, 479124), (48, 439197), (66, 319416), (72, 292798), (88, 239562), (99, 212944), (132, 159708), (144, 146399), (176, 119781), (198, 106472), (264, 79854), (396, 53236), (528, 39927), (792, 26618), (1584, 13309)]