291681774

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{228233}}^1$

素因数の和:228312

約数の個数: 24

約数和(自身を含む): 640881072

約数和(自身を除く): 349199298

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 228233, 456466, 684699, 1369398, 2054097, 4108194, 16204543, 32409086, 48613629, 97227258, 145840887, 291681774]

約数ペア:

[(1, 291681774), (2, 145840887), (3, 97227258), (6, 48613629), (9, 32409086), (18, 16204543), (71, 4108194), (142, 2054097), (213, 1369398), (426, 684699), (639, 456466), (1278, 228233)]