21369165

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 35495040

約数和(自身を除く): 14125875

約数列:

[1, 3, 5, 15, 37, 111, 139, 185, 277, 417, 555, 695, 831, 1385, 2085, 4155, 5143, 10249, 15429, 25715, 30747, 38503, 51245, 77145, 115509, 153735, 192515, 577545, 1424611, 4273833, 7123055, 21369165]

約数ペア:

[(1, 21369165), (3, 7123055), (5, 4273833), (15, 1424611), (37, 577545), (111, 192515), (139, 153735), (185, 115509), (277, 77145), (417, 51245), (555, 38503), (695, 30747), (831, 25715), (1385, 15429), (2085, 10249), (4155, 5143)]