17820955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1721}}^1$

素因数の和:1854

約数の個数: 16

約数和(自身を含む): 22730400

約数和(自身を除く): 4909445

約数列:

[1, 5, 19, 95, 109, 545, 1721, 2071, 8605, 10355, 32699, 163495, 187589, 937945, 3564191, 17820955]

約数ペア:

[(1, 17820955), (5, 3564191), (19, 937945), (95, 187589), (109, 163495), (545, 32699), (1721, 10355), (2071, 8605)]