289665621

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{241993}}^1$

素因数の和:242025

約数の個数: 24

約数和(自身を含む): 503347520

約数和(自身を除く): 213681899

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 241993, 725979, 1693951, 2177937, 4597867, 5081853, 13793601, 15245559, 32185069, 41380803, 96555207, 289665621]

約数ペア:

[(1, 289665621), (3, 96555207), (7, 41380803), (9, 32185069), (19, 15245559), (21, 13793601), (57, 5081853), (63, 4597867), (133, 2177937), (171, 1693951), (399, 725979), (1197, 241993)]