21555428

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{463}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 38508288

約数和(自身を除く): 16952860

約数列:

[1, 2, 4, 103, 113, 206, 226, 412, 452, 463, 926, 1852, 11639, 23278, 46556, 47689, 52319, 95378, 104638, 190756, 209276, 5388857, 10777714, 21555428]

約数ペア:

[(1, 21555428), (2, 10777714), (4, 5388857), (103, 209276), (113, 190756), (206, 104638), (226, 95378), (412, 52319), (452, 47689), (463, 46556), (926, 23278), (1852, 11639)]