21449391

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1\times {\mathrm{677}}^1$

素因数の和:918

約数の個数: 16

約数和(自身を含む): 29289600

約数和(自身を除く): 7840209

約数列:

[1, 3, 59, 177, 179, 537, 677, 2031, 10561, 31683, 39943, 119829, 121183, 363549, 7149797, 21449391]

約数ペア:

[(1, 21449391), (3, 7149797), (59, 363549), (177, 121183), (179, 119829), (537, 39943), (677, 31683), (2031, 10561)]