28665855

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20549}}^1$

素因数の和:20591

約数の個数: 24

約数和(自身を含む): 51292800

約数和(自身を除く): 22626945

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20549, 61647, 102745, 184941, 308235, 637019, 924705, 1911057, 3185095, 5733171, 9555285, 28665855]

約数ペア:

[(1, 28665855), (3, 9555285), (5, 5733171), (9, 3185095), (15, 1911057), (31, 924705), (45, 637019), (93, 308235), (155, 184941), (279, 102745), (465, 61647), (1395, 20549)]