18712095

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 31164672

約数和(自身を除く): 12452577

約数列:

[1, 3, 5, 15, 43, 67, 129, 201, 215, 335, 433, 645, 1005, 1299, 2165, 2881, 6495, 8643, 14405, 18619, 29011, 43215, 55857, 87033, 93095, 145055, 279285, 435165, 1247473, 3742419, 6237365, 18712095]

約数ペア:

[(1, 18712095), (3, 6237365), (5, 3742419), (15, 1247473), (43, 435165), (67, 279285), (129, 145055), (201, 93095), (215, 87033), (335, 55857), (433, 43215), (645, 29011), (1005, 18619), (1299, 14405), (2165, 8643), (2881, 6495)]