21256630

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6581}}^1$

素因数の和:6624

約数の個数: 32

約数和(自身を含む): 42651360

約数和(自身を除く): 21394730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 6581, 13162, 32905, 65810, 111877, 125039, 223754, 250078, 559385, 625195, 1118770, 1250390, 2125663, 4251326, 10628315, 21256630]

約数ペア:

[(1, 21256630), (2, 10628315), (5, 4251326), (10, 2125663), (17, 1250390), (19, 1118770), (34, 625195), (38, 559385), (85, 250078), (95, 223754), (170, 125039), (190, 111877), (323, 65810), (646, 32905), (1615, 13162), (3230, 6581)]