21920605

素因数分解:

$5^1\times 7^1\times {\mathrm{761}}^1\times {\mathrm{823}}^1$

素因数の和:1596

約数の個数: 16

約数和(自身を含む): 30138624

約数和(自身を除く): 8218019

約数列:

[1, 5, 7, 35, 761, 823, 3805, 4115, 5327, 5761, 26635, 28805, 626303, 3131515, 4384121, 21920605]

約数ペア:

[(1, 21920605), (5, 4384121), (7, 3131515), (35, 626303), (761, 28805), (823, 26635), (3805, 5761), (4115, 5327)]