18428991

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{4547}}^1$

素因数の和:4750

約数の個数: 16

約数和(自身を含む): 28233984

約数和(自身を除く): 9804993

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 4547, 13641, 31829, 95487, 877571, 2632713, 6142997, 18428991]

約数ペア:

[(1, 18428991), (3, 6142997), (7, 2632713), (21, 877571), (193, 95487), (579, 31829), (1351, 13641), (4053, 4547)]