17920707

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{2027}}^1$

素因数の和:2458

約数の個数: 16

約数和(自身を含む): 27386112

約数和(自身を除く): 9465405

約数列:

[1, 3, 7, 21, 421, 1263, 2027, 2947, 6081, 8841, 14189, 42567, 853367, 2560101, 5973569, 17920707]

約数ペア:

[(1, 17920707), (3, 5973569), (7, 2560101), (21, 853367), (421, 42567), (1263, 14189), (2027, 8841), (2947, 6081)]