18727965

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{24481}}^1$

素因数の和:24509

約数の個数: 24

約数和(自身を含む): 34372728

約数和(自身を除く): 15644763

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 24481, 73443, 122405, 220329, 367215, 416177, 1101645, 1248531, 2080885, 3745593, 6242655, 18727965]

約数ペア:

[(1, 18727965), (3, 6242655), (5, 3745593), (9, 2080885), (15, 1248531), (17, 1101645), (45, 416177), (51, 367215), (85, 220329), (153, 122405), (255, 73443), (765, 24481)]