28520427

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{167}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 42900480

約数和(自身を除く): 14380053

約数列:

[1, 3, 13, 29, 39, 87, 151, 167, 377, 453, 501, 1131, 1963, 2171, 4379, 4843, 5889, 6513, 13137, 14529, 25217, 56927, 62959, 75651, 170781, 188877, 327821, 731293, 983463, 2193879, 9506809, 28520427]

約数ペア:

[(1, 28520427), (3, 9506809), (13, 2193879), (29, 983463), (39, 731293), (87, 327821), (151, 188877), (167, 170781), (377, 75651), (453, 62959), (501, 56927), (1131, 25217), (1963, 14529), (2171, 13137), (4379, 6513), (4843, 5889)]