20785628

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{5011}}^1$

素因数の和:5093

約数の個数: 24

約数和(自身を含む): 39153744

約数和(自身を除く): 18368116

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 1037, 2074, 4148, 5011, 10022, 20044, 85187, 170374, 305671, 340748, 611342, 1222684, 5196407, 10392814, 20785628]

約数ペア:

[(1, 20785628), (2, 10392814), (4, 5196407), (17, 1222684), (34, 611342), (61, 340748), (68, 305671), (122, 170374), (244, 85187), (1037, 20044), (2074, 10022), (4148, 5011)]