20123397

素因数分解:

$3^4\times 7^1\times {\mathrm{35491}}^1$

素因数の和:35510

約数の個数: 20

約数和(自身を含む): 34356256

約数和(自身を除く): 14232859

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35491, 106473, 248437, 319419, 745311, 958257, 2235933, 2874771, 6707799, 20123397]

約数ペア:

[(1, 20123397), (3, 6707799), (7, 2874771), (9, 2235933), (21, 958257), (27, 745311), (63, 319419), (81, 248437), (189, 106473), (567, 35491)]