18788341

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 23442048

約数和(自身を除く): 4653707

約数列:

[1, 11, 13, 37, 53, 67, 143, 407, 481, 583, 689, 737, 871, 1961, 2479, 3551, 5291, 7579, 9581, 21571, 25493, 27269, 32227, 39061, 46163, 131387, 280423, 354497, 507793, 1445257, 1708031, 18788341]

約数ペア:

[(1, 18788341), (11, 1708031), (13, 1445257), (37, 507793), (53, 354497), (67, 280423), (143, 131387), (407, 46163), (481, 39061), (583, 32227), (689, 27269), (737, 25493), (871, 21571), (1961, 9581), (2479, 7579), (3551, 5291)]