201781521

素因数分解:

$3^2\times {\mathrm{439}}^1\times {\mathrm{51071}}^1$

素因数の和:51516

約数の個数: 12

約数和(自身を含む): 292131840

約数和(自身を除く): 90350319

約数列:

[1, 3, 9, 439, 1317, 3951, 51071, 153213, 459639, 22420169, 67260507, 201781521]

約数ペア:

[(1, 201781521), (3, 67260507), (9, 22420169), (439, 459639), (1317, 153213), (3951, 51071)]