21211694

素因数分解:

$2^1\times 7^1\times {\mathrm{601}}^1\times {\mathrm{2521}}^1$

素因数の和:3131

約数の個数: 16

約数和(自身を含む): 36437856

約数和(自身を除く): 15226162

約数列:

[1, 2, 7, 14, 601, 1202, 2521, 4207, 5042, 8414, 17647, 35294, 1515121, 3030242, 10605847, 21211694]

約数ペア:

[(1, 21211694), (2, 10605847), (7, 3030242), (14, 1515121), (601, 35294), (1202, 17647), (2521, 8414), (4207, 5042)]