21308043

素因数分解:

$3^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{653}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 29037600

約数和(自身を除く): 7729557

約数列:

[1, 3, 73, 149, 219, 447, 653, 1959, 10877, 32631, 47669, 97297, 143007, 291891, 7102681, 21308043]

約数ペア:

[(1, 21308043), (3, 7102681), (73, 291891), (149, 143007), (219, 97297), (447, 47669), (653, 32631), (1959, 10877)]