21199009

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1283}}^1$

素因数の和:1368

約数の個数: 16

約数和(自身を含む): 24159744

約数和(自身を除く): 2960735

約数列:

[1, 13, 31, 41, 403, 533, 1271, 1283, 16523, 16679, 39773, 52603, 517049, 683839, 1630693, 21199009]

約数ペア:

[(1, 21199009), (13, 1630693), (31, 683839), (41, 517049), (403, 52603), (533, 39773), (1271, 16679), (1283, 16523)]