21073549

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{727}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 24950016

約数和(自身を除く): 3876467

約数列:

[1, 7, 41, 101, 287, 707, 727, 4141, 5089, 28987, 29807, 73427, 208649, 513989, 3010507, 21073549]

約数ペア:

[(1, 21073549), (7, 3010507), (41, 513989), (101, 208649), (287, 73427), (707, 29807), (727, 28987), (4141, 5089)]