16905805

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{21001}}^1$

素因数の和:21036

約数の個数: 16

約数和(自身を含む): 24194304

約数和(自身を除く): 7288499

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 21001, 105005, 147007, 483023, 735035, 2415115, 3381161, 16905805]

約数ペア:

[(1, 16905805), (5, 3381161), (7, 2415115), (23, 735035), (35, 483023), (115, 147007), (161, 105005), (805, 21001)]