21006040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47741}}^1$

素因数の和:47763

約数の個数: 32

約数和(自身を含む): 51561360

約数和(自身を除く): 30555320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47741, 95482, 190964, 238705, 381928, 477410, 525151, 954820, 1050302, 1909640, 2100604, 2625755, 4201208, 5251510, 10503020, 21006040]

約数ペア:

[(1, 21006040), (2, 10503020), (4, 5251510), (5, 4201208), (8, 2625755), (10, 2100604), (11, 1909640), (20, 1050302), (22, 954820), (40, 525151), (44, 477410), (55, 381928), (88, 238705), (110, 190964), (220, 95482), (440, 47741)]