12387123

素因数分解:

$3^2\times 7^1\times {\mathrm{353}}^1\times {\mathrm{557}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 20543328

約数和(自身を除く): 8156205

約数列:

[1, 3, 7, 9, 21, 63, 353, 557, 1059, 1671, 2471, 3177, 3899, 5013, 7413, 11697, 22239, 35091, 196621, 589863, 1376347, 1769589, 4129041, 12387123]

約数ペア:

[(1, 12387123), (3, 4129041), (7, 1769589), (9, 1376347), (21, 589863), (63, 196621), (353, 35091), (557, 22239), (1059, 11697), (1671, 7413), (2471, 5013), (3177, 3899)]