217419391

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{773}}^1\times {\mathrm{1747}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 259766784

約数和(自身を除く): 42347393

約数列:

[1, 7, 23, 161, 773, 1747, 5411, 12229, 17779, 40181, 124453, 281267, 1350431, 9453017, 31059913, 217419391]

約数ペア:

[(1, 217419391), (7, 31059913), (23, 9453017), (161, 1350431), (773, 281267), (1747, 124453), (5411, 40181), (12229, 17779)]