51918705

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{727}}^1$

素因数の和:787

約数の個数: 48

約数和(自身を含む): 96620160

約数和(自身を除く): 44701455

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 529, 621, 727, 1035, 1587, 2181, 2645, 3105, 3635, 4761, 6543, 7935, 10905, 14283, 16721, 19629, 23805, 32715, 50163, 71415, 83605, 98145, 150489, 250815, 384583, 451467, 752445, 1153749, 1922915, 2257335, 3461247, 5768745, 10383741, 17306235, 51918705]

約数ペア:

[(1, 51918705), (3, 17306235), (5, 10383741), (9, 5768745), (15, 3461247), (23, 2257335), (27, 1922915), (45, 1153749), (69, 752445), (115, 451467), (135, 384583), (207, 250815), (345, 150489), (529, 98145), (621, 83605), (727, 71415), (1035, 50163), (1587, 32715), (2181, 23805), (2645, 19629), (3105, 16721), (3635, 14283), (4761, 10905), (6543, 7935)]