21791409

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{4177}}^1$

素因数の和:4264

約数の個数: 16

約数和(自身を含む): 30482688

約数和(自身を除く): 8691279

約数列:

[1, 3, 37, 47, 111, 141, 1739, 4177, 5217, 12531, 154549, 196319, 463647, 588957, 7263803, 21791409]

約数ペア:

[(1, 21791409), (3, 7263803), (37, 588957), (47, 463647), (111, 196319), (141, 154549), (1739, 12531), (4177, 5217)]