21052696

素因数分解:

$2^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{3449}}^1$

素因数の和:3571

約数の個数: 32

約数和(自身を含む): 45540000

約数和(自身を除く): 24487304

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 109, 218, 436, 763, 872, 1526, 3052, 3449, 6104, 6898, 13796, 24143, 27592, 48286, 96572, 193144, 375941, 751882, 1503764, 2631587, 3007528, 5263174, 10526348, 21052696]

約数ペア:

[(1, 21052696), (2, 10526348), (4, 5263174), (7, 3007528), (8, 2631587), (14, 1503764), (28, 751882), (56, 375941), (109, 193144), (218, 96572), (436, 48286), (763, 27592), (872, 24143), (1526, 13796), (3052, 6898), (3449, 6104)]