164021679

素因数分解:

$3^4\times {\mathrm{409}}^1\times {\mathrm{4951}}^1$

素因数の和:5372

約数の個数: 20

約数和(自身を含む): 245668720

約数和(自身を除く): 81647041

約数列:

[1, 3, 9, 27, 81, 409, 1227, 3681, 4951, 11043, 14853, 33129, 44559, 133677, 401031, 2024959, 6074877, 18224631, 54673893, 164021679]

約数ペア:

[(1, 164021679), (3, 54673893), (9, 18224631), (27, 6074877), (81, 2024959), (409, 401031), (1227, 133677), (3681, 44559), (4951, 33129), (11043, 14853)]