21120996

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135391}}^1$

素因数の和:135411

約数の個数: 24

約数和(自身を含む): 53073664

約数和(自身を除く): 31952668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135391, 270782, 406173, 541564, 812346, 1624692, 1760083, 3520166, 5280249, 7040332, 10560498, 21120996]

約数ペア:

[(1, 21120996), (2, 10560498), (3, 7040332), (4, 5280249), (6, 3520166), (12, 1760083), (13, 1624692), (26, 812346), (39, 541564), (52, 406173), (78, 270782), (156, 135391)]