20555912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{827}}^1$

素因数の和:1085

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 21175288

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 827, 956, 1654, 1912, 3107, 3308, 6214, 6616, 10751, 12428, 21502, 24856, 43004, 86008, 197653, 395306, 790612, 1581224, 2569489, 5138978, 10277956, 20555912]

約数ペア:

[(1, 20555912), (2, 10277956), (4, 5138978), (8, 2569489), (13, 1581224), (26, 790612), (52, 395306), (104, 197653), (239, 86008), (478, 43004), (827, 24856), (956, 21502), (1654, 12428), (1912, 10751), (3107, 6616), (3308, 6214)]