28812381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{487}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 43615488

約数和(自身を除く): 14803107

約数列:

[1, 3, 13, 37, 39, 41, 111, 123, 481, 487, 533, 1443, 1461, 1517, 1599, 4551, 6331, 18019, 18993, 19721, 19967, 54057, 59163, 59901, 234247, 259571, 702741, 738779, 778713, 2216337, 9604127, 28812381]

約数ペア:

[(1, 28812381), (3, 9604127), (13, 2216337), (37, 778713), (39, 738779), (41, 702741), (111, 259571), (123, 234247), (481, 59901), (487, 59163), (533, 54057), (1443, 19967), (1461, 19721), (1517, 18993), (1599, 18019), (4551, 6331)]