215131833

素因数分解:

$3^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{7129}}^1$

素因数の和:7621

約数の個数: 24

約数和(自身を含む): 355929600

約数和(自身を除く): 140797767

約数列:

[1, 3, 7, 9, 21, 63, 479, 1437, 3353, 4311, 7129, 10059, 21387, 30177, 49903, 64161, 149709, 449127, 3414791, 10244373, 23903537, 30733119, 71710611, 215131833]

約数ペア:

[(1, 215131833), (3, 71710611), (7, 30733119), (9, 23903537), (21, 10244373), (63, 3414791), (479, 449127), (1437, 149709), (3353, 64161), (4311, 49903), (7129, 30177), (10059, 21387)]