7920756

素因数分解:

$2^2\times 3^2\times {\mathrm{220021}}^1$

素因数の和:220031

約数の個数: 18

約数和(自身を含む): 20022002

約数和(自身を除く): 12101246

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 220021, 440042, 660063, 880084, 1320126, 1980189, 2640252, 3960378, 7920756]

約数ペア:

[(1, 7920756), (2, 3960378), (3, 2640252), (4, 1980189), (6, 1320126), (9, 880084), (12, 660063), (18, 440042), (36, 220021)]