20170387209

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{3128647}}^1$

素因数の和:3128964

約数の個数: 16

約数和(自身を含む): 30835954688

約数和(自身を除く): 10665567479

約数列:

[1, 3, 7, 21, 307, 921, 2149, 6447, 3128647, 9385941, 21900529, 65701587, 960494629, 2881483887, 6723462403, 20170387209]

約数ペア:

[(1, 20170387209), (3, 6723462403), (7, 2881483887), (21, 960494629), (307, 65701587), (921, 21900529), (2149, 9385941), (6447, 3128647)]