16821665

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{7879}}^1$

素因数の和:7952

約数の個数: 16

約数和(自身を含む): 23450880

約数和(自身を除く): 6629215

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 7879, 39395, 55153, 275765, 480619, 2403095, 3364333, 16821665]

約数ペア:

[(1, 16821665), (5, 3364333), (7, 2403095), (35, 480619), (61, 275765), (305, 55153), (427, 39395), (2135, 7879)]