21961059

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{6427}}^1$

素因数の和:6514

約数の個数: 16

約数和(自身を含む): 31471488

約数和(自身を除く): 9510429

約数列:

[1, 3, 17, 51, 67, 201, 1139, 3417, 6427, 19281, 109259, 327777, 430609, 1291827, 7320353, 21961059]

約数ペア:

[(1, 21961059), (3, 7320353), (17, 1291827), (51, 430609), (67, 327777), (201, 109259), (1139, 19281), (3417, 6427)]