21282748

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{313}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 37981440

約数和(自身を除く): 16698692

約数列:

[1, 2, 4, 89, 178, 191, 313, 356, 382, 626, 764, 1252, 16999, 27857, 33998, 55714, 59783, 67996, 111428, 119566, 239132, 5320687, 10641374, 21282748]

約数ペア:

[(1, 21282748), (2, 10641374), (4, 5320687), (89, 239132), (178, 119566), (191, 111428), (313, 67996), (356, 59783), (382, 55714), (626, 33998), (764, 27857), (1252, 16999)]