21601951

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{1087}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 26320896

約数和(自身を除く): 4718945

約数列:

[1, 7, 17, 119, 167, 1087, 1169, 2839, 7609, 18479, 19873, 129353, 181529, 1270703, 3085993, 21601951]

約数ペア:

[(1, 21601951), (7, 3085993), (17, 1270703), (119, 181529), (167, 129353), (1087, 19873), (1169, 18479), (2839, 7609)]