18705128

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4861}}^1$

素因数の和:4917

約数の個数: 32

約数和(自身を含む): 38798760

約数和(自身を除く): 20093632

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 4861, 9722, 19444, 38888, 63193, 126386, 179857, 252772, 359714, 505544, 719428, 1438856, 2338141, 4676282, 9352564, 18705128]

約数ペア:

[(1, 18705128), (2, 9352564), (4, 4676282), (8, 2338141), (13, 1438856), (26, 719428), (37, 505544), (52, 359714), (74, 252772), (104, 179857), (148, 126386), (296, 63193), (481, 38888), (962, 19444), (1924, 9722), (3848, 4861)]