20216716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2797}}^1$

素因数の和:2953

約数の個数: 24

約数和(自身を含む): 38388560

約数和(自身を除く): 18171844

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2797, 3614, 5594, 7228, 11188, 36361, 72722, 145444, 388783, 777566, 1555132, 5054179, 10108358, 20216716]

約数ペア:

[(1, 20216716), (2, 10108358), (4, 5054179), (13, 1555132), (26, 777566), (52, 388783), (139, 145444), (278, 72722), (556, 36361), (1807, 11188), (2797, 7228), (3614, 5594)]