21739461

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1409}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 30004800

約数和(自身を除く): 8265339

約数列:

[1, 3, 37, 111, 139, 417, 1409, 4227, 5143, 15429, 52133, 156399, 195851, 587553, 7246487, 21739461]

約数ペア:

[(1, 21739461), (3, 7246487), (37, 587553), (111, 195851), (139, 156399), (417, 52133), (1409, 15429), (4227, 5143)]