21986276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{751}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 41564544

約数和(自身を除く): 19578268

約数列:

[1, 2, 4, 13, 26, 52, 563, 751, 1126, 1502, 2252, 3004, 7319, 9763, 14638, 19526, 29276, 39052, 422813, 845626, 1691252, 5496569, 10993138, 21986276]

約数ペア:

[(1, 21986276), (2, 10993138), (4, 5496569), (13, 1691252), (26, 845626), (52, 422813), (563, 39052), (751, 29276), (1126, 19526), (1502, 14638), (2252, 9763), (3004, 7319)]