21581854

素因数分解:

$2^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{1153}}^1$

素因数の和:1360

約数の個数: 24

約数和(自身を含む): 37888128

約数和(自身を除く): 16306274

約数列:

[1, 2, 7, 14, 49, 98, 191, 382, 1153, 1337, 2306, 2674, 8071, 9359, 16142, 18718, 56497, 112994, 220223, 440446, 1541561, 3083122, 10790927, 21581854]

約数ペア:

[(1, 21581854), (2, 10790927), (7, 3083122), (14, 1541561), (49, 440446), (98, 220223), (191, 112994), (382, 56497), (1153, 18718), (1337, 16142), (2306, 9359), (2674, 8071)]