21877135

素因数分解:

$5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1997}}^1$

素因数の和:2322

約数の個数: 16

約数和(自身を含む): 30113856

約数和(自身を除く): 8236721

約数列:

[1, 5, 7, 35, 313, 1565, 1997, 2191, 9985, 10955, 13979, 69895, 625061, 3125305, 4375427, 21877135]

約数ペア:

[(1, 21877135), (5, 4375427), (7, 3125305), (35, 625061), (313, 69895), (1565, 13979), (1997, 10955), (2191, 9985)]