3981231

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{2137}}^1$

素因数の和:2172

約数の個数: 20

約数和(自身を含む): 6208752

約数和(自身を除く): 2227521

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 2137, 6411, 19233, 49151, 57699, 147453, 173097, 442359, 1327077, 3981231]

約数ペア:

[(1, 3981231), (3, 1327077), (9, 442359), (23, 173097), (27, 147453), (69, 57699), (81, 49151), (207, 19233), (621, 6411), (1863, 2137)]