18651369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:381

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 10240791

約数列:

[1, 3, 11, 19, 33, 57, 151, 197, 209, 453, 591, 627, 1661, 2167, 2869, 3743, 4983, 6501, 8607, 11229, 29747, 31559, 41173, 89241, 94677, 123519, 327217, 565193, 981651, 1695579, 6217123, 18651369]

約数ペア:

[(1, 18651369), (3, 6217123), (11, 1695579), (19, 981651), (33, 565193), (57, 327217), (151, 123519), (197, 94677), (209, 89241), (453, 41173), (591, 31559), (627, 29747), (1661, 11229), (2167, 8607), (2869, 6501), (3743, 4983)]