18511191

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 27630720

約数和(自身を除く): 9119529

約数列:

[1, 3, 9, 59, 71, 177, 213, 491, 531, 639, 1473, 4189, 4419, 12567, 28969, 34861, 37701, 86907, 104583, 260721, 313749, 2056799, 6170397, 18511191]

約数ペア:

[(1, 18511191), (3, 6170397), (9, 2056799), (59, 313749), (71, 260721), (177, 104583), (213, 86907), (491, 37701), (531, 34861), (639, 28969), (1473, 12567), (4189, 4419)]