15972369

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40031}}^1$

素因数の和:40060

約数の個数: 16

約数和(自身を含む): 25620480

約数和(自身を除く): 9648111

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 40031, 120093, 280217, 760589, 840651, 2281767, 5324123, 15972369]

約数ペア:

[(1, 15972369), (3, 5324123), (7, 2281767), (19, 840651), (21, 760589), (57, 280217), (133, 120093), (399, 40031)]