17973221

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{401}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 21740160

約数和(自身を除く): 3766939

約数列:

[1, 7, 19, 133, 337, 401, 2359, 2807, 6403, 7619, 44821, 53333, 135137, 945959, 2567603, 17973221]

約数ペア:

[(1, 17973221), (7, 2567603), (19, 945959), (133, 135137), (337, 53333), (401, 44821), (2359, 7619), (2807, 6403)]