21375399

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{12097}}^1$

素因数の和:12150

約数の個数: 16

約数和(自身を含む): 30970880

約数和(自身を除く): 9595481

約数列:

[1, 3, 19, 31, 57, 93, 589, 1767, 12097, 36291, 229843, 375007, 689529, 1125021, 7125133, 21375399]

約数ペア:

[(1, 21375399), (3, 7125133), (19, 1125021), (31, 689529), (57, 375007), (93, 229843), (589, 36291), (1767, 12097)]