645174

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:572

約数の個数: 24

約数和(自身を含む): 1419912

約数和(自身を除く): 774738

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 491, 657, 982, 1314, 1473, 2946, 4419, 8838, 35843, 71686, 107529, 215058, 322587, 645174]

約数ペア:

[(1, 645174), (2, 322587), (3, 215058), (6, 107529), (9, 71686), (18, 35843), (73, 8838), (146, 4419), (219, 2946), (438, 1473), (491, 1314), (657, 982)]