18713157

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{467}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 27102816

約数和(自身を除く): 8389659

約数列:

[1, 3, 19, 37, 57, 111, 361, 467, 703, 1083, 1401, 2109, 8873, 13357, 17279, 26619, 40071, 51837, 168587, 328301, 505761, 984903, 6237719, 18713157]

約数ペア:

[(1, 18713157), (3, 6237719), (19, 984903), (37, 505761), (57, 328301), (111, 168587), (361, 51837), (467, 40071), (703, 26619), (1083, 17279), (1401, 13357), (2109, 8873)]