21209752

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{50023}}^1$

素因数の和:50082

約数の個数: 16

約数和(自身を含む): 40519440

約数和(自身を除く): 19309688

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 50023, 100046, 200092, 400184, 2651219, 5302438, 10604876, 21209752]

約数ペア:

[(1, 21209752), (2, 10604876), (4, 5302438), (8, 2651219), (53, 400184), (106, 200092), (212, 100046), (424, 50023)]