20577544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{821}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 41774040

約数和(自身を除く): 21196496

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 241, 482, 821, 964, 1642, 1928, 3133, 3284, 6266, 6568, 10673, 12532, 21346, 25064, 42692, 85384, 197861, 395722, 791444, 1582888, 2572193, 5144386, 10288772, 20577544]

約数ペア:

[(1, 20577544), (2, 10288772), (4, 5144386), (8, 2572193), (13, 1582888), (26, 791444), (52, 395722), (104, 197861), (241, 85384), (482, 42692), (821, 25064), (964, 21346), (1642, 12532), (1928, 10673), (3133, 6568), (3284, 6266)]