18215275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1367}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 24935904

約数和(自身を除く): 6720629

約数列:

[1, 5, 13, 25, 41, 65, 205, 325, 533, 1025, 1367, 2665, 6835, 13325, 17771, 34175, 56047, 88855, 280235, 444275, 728611, 1401175, 3643055, 18215275]

約数ペア:

[(1, 18215275), (5, 3643055), (13, 1401175), (25, 728611), (41, 444275), (65, 280235), (205, 88855), (325, 56047), (533, 34175), (1025, 17771), (1367, 13325), (2665, 6835)]