9870987

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 15685632

約数和(自身を除く): 5814645

約数列:

[1, 3, 7, 21, 47, 73, 137, 141, 219, 329, 411, 511, 959, 987, 1533, 2877, 3431, 6439, 10001, 10293, 19317, 24017, 30003, 45073, 70007, 72051, 135219, 210021, 470047, 1410141, 3290329, 9870987]

約数ペア:

[(1, 9870987), (3, 3290329), (7, 1410141), (21, 470047), (47, 210021), (73, 135219), (137, 72051), (141, 70007), (219, 45073), (329, 30003), (411, 24017), (511, 19317), (959, 10293), (987, 10001), (1533, 6439), (2877, 3431)]