978957987

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{140837}}^1$

素因数の和:141178

約数の個数: 16

約数和(自身を含む): 1496262912

約数和(自身を除く): 517304925

約数列:

[1, 3, 7, 21, 331, 993, 2317, 6951, 140837, 422511, 985859, 2957577, 46617047, 139851141, 326319329, 978957987]

約数ペア:

[(1, 978957987), (3, 326319329), (7, 139851141), (21, 46617047), (331, 2957577), (993, 985859), (2317, 422511), (6951, 140837)]