21818875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{463}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 30401280

約数和(自身を除く): 8582405

約数列:

[1, 5, 13, 25, 29, 65, 125, 145, 325, 377, 463, 725, 1625, 1885, 2315, 3625, 6019, 9425, 11575, 13427, 30095, 47125, 57875, 67135, 150475, 174551, 335675, 752375, 872755, 1678375, 4363775, 21818875]

約数ペア:

[(1, 21818875), (5, 4363775), (13, 1678375), (25, 872755), (29, 752375), (65, 335675), (125, 174551), (145, 150475), (325, 67135), (377, 57875), (463, 47125), (725, 30095), (1625, 13427), (1885, 11575), (2315, 9425), (3625, 6019)]