20854576515

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{857}}^1\times {\mathrm{95429}}^1$

素因数の和:96311

約数の個数: 32

約数和(自身を含む): 35371702080

約数和(自身を除く): 14517125565

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 857, 2571, 4285, 12855, 14569, 43707, 72845, 95429, 218535, 286287, 477145, 1431435, 1622293, 4866879, 8111465, 24334395, 81782653, 245347959, 408913265, 1226739795, 1390305101, 4170915303, 6951525505, 20854576515]

約数ペア:

[(1, 20854576515), (3, 6951525505), (5, 4170915303), (15, 1390305101), (17, 1226739795), (51, 408913265), (85, 245347959), (255, 81782653), (857, 24334395), (2571, 8111465), (4285, 4866879), (12855, 1622293), (14569, 1431435), (43707, 477145), (72845, 286287), (95429, 218535)]