20105197

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{827}}^1$

素因数の和:1008

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 4059155

約数列:

[1, 7, 23, 151, 161, 827, 1057, 3473, 5789, 19021, 24311, 124877, 133147, 874139, 2872171, 20105197]

約数ペア:

[(1, 20105197), (7, 2872171), (23, 874139), (151, 133147), (161, 124877), (827, 24311), (1057, 19021), (3473, 5789)]