28649061

素因数分解:

$3^2\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1303}}^1$

素因数の和:1665

約数の個数: 24

約数和(自身を含む): 47465600

約数和(自身を除く): 18816539

約数列:

[1, 3, 7, 9, 21, 63, 349, 1047, 1303, 2443, 3141, 3909, 7329, 9121, 11727, 21987, 27363, 82089, 454747, 1364241, 3183229, 4092723, 9549687, 28649061]

約数ペア:

[(1, 28649061), (3, 9549687), (7, 4092723), (9, 3183229), (21, 1364241), (63, 454747), (349, 82089), (1047, 27363), (1303, 21987), (2443, 11727), (3141, 9121), (3909, 7329)]