18761912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2027}}^1$

素因数の和:2135

約数の個数: 32

約数和(自身を含む): 38329200

約数和(自身を除く): 19567288

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2027, 2314, 4054, 4628, 8108, 9256, 16216, 26351, 52702, 105404, 180403, 210808, 360806, 721612, 1443224, 2345239, 4690478, 9380956, 18761912]

約数ペア:

[(1, 18761912), (2, 9380956), (4, 4690478), (8, 2345239), (13, 1443224), (26, 721612), (52, 360806), (89, 210808), (104, 180403), (178, 105404), (356, 52702), (712, 26351), (1157, 16216), (2027, 9256), (2314, 8108), (4054, 4628)]