21768687

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1801}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 33733440

約数和(自身を除く): 11964753

約数列:

[1, 3, 9, 17, 51, 79, 153, 237, 711, 1343, 1801, 4029, 5403, 12087, 16209, 30617, 91851, 142279, 275553, 426837, 1280511, 2418743, 7256229, 21768687]

約数ペア:

[(1, 21768687), (3, 7256229), (9, 2418743), (17, 1280511), (51, 426837), (79, 275553), (153, 142279), (237, 91851), (711, 30617), (1343, 16209), (1801, 12087), (4029, 5403)]