20648716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4153}}^1$

素因数の和:4281

約数の個数: 24

約数和(自身を含む): 39778704

約数和(自身を除く): 19129988

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4153, 4972, 8306, 16612, 45683, 91366, 182732, 469289, 938578, 1877156, 5162179, 10324358, 20648716]

約数ペア:

[(1, 20648716), (2, 10324358), (4, 5162179), (11, 1877156), (22, 938578), (44, 469289), (113, 182732), (226, 91366), (452, 45683), (1243, 16612), (2486, 8306), (4153, 4972)]