81641574

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{215983}}^1$

素因数の和:216001

約数の個数: 32

約数和(自身を含む): 207344640

約数和(自身を除く): 125703066

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 215983, 431966, 647949, 1295898, 1511881, 1943847, 3023762, 3887694, 4535643, 5831541, 9071286, 11663082, 13606929, 27213858, 40820787, 81641574]

約数ペア:

[(1, 81641574), (2, 40820787), (3, 27213858), (6, 13606929), (7, 11663082), (9, 9071286), (14, 5831541), (18, 4535643), (21, 3887694), (27, 3023762), (42, 1943847), (54, 1511881), (63, 1295898), (126, 647949), (189, 431966), (378, 215983)]