81822879

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{15077}}^1$

素因数の和:15156

約数の個数: 20

約数和(自身を含む): 124061784

約数和(自身を除く): 42238905

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 15077, 45231, 135693, 407079, 1010159, 1221237, 3030477, 9091431, 27274293, 81822879]

約数ペア:

[(1, 81822879), (3, 27274293), (9, 9091431), (27, 3030477), (67, 1221237), (81, 1010159), (201, 407079), (603, 135693), (1809, 45231), (5427, 15077)]