21001420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95461}}^1$

素因数の和:95481

約数の個数: 24

約数和(自身を含む): 48112848

約数和(自身を除く): 27111428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95461, 190922, 381844, 477305, 954610, 1050071, 1909220, 2100142, 4200284, 5250355, 10500710, 21001420]

約数ペア:

[(1, 21001420), (2, 10500710), (4, 5250355), (5, 4200284), (10, 2100142), (11, 1909220), (20, 1050071), (22, 954610), (44, 477305), (55, 381844), (110, 190922), (220, 95461)]