21913549

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1039}}^1$

素因数の和:1200

約数の個数: 16

約数和(自身を含む): 26357760

約数和(自身を除く): 4444211

約数列:

[1, 7, 23, 131, 161, 917, 1039, 3013, 7273, 21091, 23897, 136109, 167279, 952763, 3130507, 21913549]

約数ペア:

[(1, 21913549), (7, 3130507), (23, 952763), (131, 167279), (161, 136109), (917, 23897), (1039, 21091), (3013, 7273)]