21198357

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2339}}^1$

素因数の和:2417

約数の個数: 24

約数和(自身を含む): 32853600

約数和(自身を除く): 11655243

約数列:

[1, 3, 9, 19, 53, 57, 159, 171, 477, 1007, 2339, 3021, 7017, 9063, 21051, 44441, 123967, 133323, 371901, 399969, 1115703, 2355373, 7066119, 21198357]

約数ペア:

[(1, 21198357), (3, 7066119), (9, 2355373), (19, 1115703), (53, 399969), (57, 371901), (159, 133323), (171, 123967), (477, 44441), (1007, 21051), (2339, 9063), (3021, 7017)]