20961976

素因数分解:

$2^3\times 7^1\times {\mathrm{374321}}^1$

素因数の和:374334

約数の個数: 16

約数和(自身を含む): 44918640

約数和(自身を除く): 23956664

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 374321, 748642, 1497284, 2620247, 2994568, 5240494, 10480988, 20961976]

約数ペア:

[(1, 20961976), (2, 10480988), (4, 5240494), (7, 2994568), (8, 2620247), (14, 1497284), (28, 748642), (56, 374321)]