278291237

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{246931}}^1$

素因数の和:246968

約数の個数: 12

約数和(自身を含む): 337802976

約数和(自身を除く): 59511739

約数列:

[1, 7, 23, 49, 161, 1127, 246931, 1728517, 5679413, 12099619, 39755891, 278291237]

約数ペア:

[(1, 278291237), (7, 39755891), (23, 12099619), (49, 5679413), (161, 1728517), (1127, 246931)]