21403501

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{3593}}^1$

素因数の和:3660

約数の個数: 16

約数和(自身を含む): 26221824

約数和(自身を除く): 4818323

約数列:

[1, 7, 23, 37, 161, 259, 851, 3593, 5957, 25151, 82639, 132941, 578473, 930587, 3057643, 21403501]

約数ペア:

[(1, 21403501), (7, 3057643), (23, 930587), (37, 578473), (161, 132941), (259, 82639), (851, 25151), (3593, 5957)]