215511109

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1\times {\mathrm{631}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 239806080

約数和(自身を除く): 24294971

約数列:

[1, 11, 61, 509, 631, 671, 5599, 6941, 31049, 38491, 321179, 341539, 423401, 3532969, 19591919, 215511109]

約数ペア:

[(1, 215511109), (11, 19591919), (61, 3532969), (509, 423401), (631, 341539), (671, 321179), (5599, 38491), (6941, 31049)]