21738392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4861}}^1$

素因数の和:4923

約数の個数: 32

約数和(自身を含む): 44924880

約数和(自身を除く): 23186488

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 4861, 9722, 19444, 38888, 63193, 126386, 209023, 252772, 418046, 505544, 836092, 1672184, 2717299, 5434598, 10869196, 21738392]

約数ペア:

[(1, 21738392), (2, 10869196), (4, 5434598), (8, 2717299), (13, 1672184), (26, 836092), (43, 505544), (52, 418046), (86, 252772), (104, 209023), (172, 126386), (344, 63193), (559, 38888), (1118, 19444), (2236, 9722), (4472, 4861)]