15802157

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 19348992

約数和(自身を除く): 3546835

約数列:

[1, 7, 31, 49, 101, 103, 217, 707, 721, 1519, 3131, 3193, 4949, 5047, 10403, 21917, 22351, 72821, 153419, 156457, 322493, 509747, 2257451, 15802157]

約数ペア:

[(1, 15802157), (7, 2257451), (31, 509747), (49, 322493), (101, 156457), (103, 153419), (217, 72821), (707, 22351), (721, 21917), (1519, 10403), (3131, 5047), (3193, 4949)]