398156679

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{787}}^1\times {\mathrm{839}}^1$

素因数の和:1699

約数の個数: 24

約数和(自身を含む): 585137280

約数和(自身を除く): 186980601

約数列:

[1, 3, 9, 67, 201, 603, 787, 839, 2361, 2517, 7083, 7551, 52729, 56213, 158187, 168639, 474561, 505917, 660293, 1980879, 5942637, 44239631, 132718893, 398156679]

約数ペア:

[(1, 398156679), (3, 132718893), (9, 44239631), (67, 5942637), (201, 1980879), (603, 660293), (787, 505917), (839, 474561), (2361, 168639), (2517, 158187), (7083, 56213), (7551, 52729)]