20938135

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{787}}^1$

素因数の和:1122

約数の個数: 16

約数和(自身を含む): 26722656

約数和(自身を除く): 5784521

約数列:

[1, 5, 17, 85, 313, 787, 1565, 3935, 5321, 13379, 26605, 66895, 246331, 1231655, 4187627, 20938135]

約数ペア:

[(1, 20938135), (5, 4187627), (17, 1231655), (85, 246331), (313, 66895), (787, 26605), (1565, 13379), (3935, 5321)]