20853872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{937}}^1$

素因数の和:1065

約数の個数: 40

約数和(自身を含む): 43965936

約数和(自身を除く): 23112064

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 937, 1391, 1712, 1874, 2782, 3748, 5564, 7496, 11128, 12181, 14992, 22256, 24362, 48724, 97448, 100259, 194896, 200518, 401036, 802072, 1303367, 1604144, 2606734, 5213468, 10426936, 20853872]

約数ペア:

[(1, 20853872), (2, 10426936), (4, 5213468), (8, 2606734), (13, 1604144), (16, 1303367), (26, 802072), (52, 401036), (104, 200518), (107, 194896), (208, 100259), (214, 97448), (428, 48724), (856, 24362), (937, 22256), (1391, 14992), (1712, 12181), (1874, 11128), (2782, 7496), (3748, 5564)]