21499586

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1\times {\mathrm{521}}^1$

素因数の和:1009

約数の個数: 16

約数和(自身を含む): 33073920

約数和(自身を除く): 11574334

約数列:

[1, 2, 47, 94, 439, 521, 878, 1042, 20633, 24487, 41266, 48974, 228719, 457438, 10749793, 21499586]

約数ペア:

[(1, 21499586), (2, 10749793), (47, 457438), (94, 228719), (439, 48974), (521, 41266), (878, 24487), (1042, 20633)]