21573108289

素因数分解:

${\mathrm{31}}^1\times {\mathrm{12907}}^1\times {\mathrm{53917}}^1$

素因数の和:66855

約数の個数: 8

約数和(自身を含む): 22271153408

約数和(自身を除く): 698045119

約数列:

[1, 31, 12907, 53917, 400117, 1671427, 695906719, 21573108289]

約数ペア:

[(1, 21573108289), (31, 695906719), (12907, 1671427), (53917, 400117)]