18405712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{827}}^1$

素因数の和:955

約数の個数: 40

約数和(自身を含む): 38810016

約数和(自身を除く): 20404304

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 827, 856, 1391, 1654, 1712, 2782, 3308, 5564, 6616, 10751, 11128, 13232, 21502, 22256, 43004, 86008, 88489, 172016, 176978, 353956, 707912, 1150357, 1415824, 2300714, 4601428, 9202856, 18405712]

約数ペア:

[(1, 18405712), (2, 9202856), (4, 4601428), (8, 2300714), (13, 1415824), (16, 1150357), (26, 707912), (52, 353956), (104, 176978), (107, 172016), (208, 88489), (214, 86008), (428, 43004), (827, 22256), (856, 21502), (1391, 13232), (1654, 11128), (1712, 10751), (2782, 6616), (3308, 5564)]