20797735

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{269}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 29250720

約数和(自身を除く): 8452985

約数列:

[1, 5, 7, 35, 47, 235, 269, 329, 1345, 1645, 1883, 2209, 9415, 11045, 12643, 15463, 63215, 77315, 88501, 442505, 594221, 2971105, 4159547, 20797735]

約数ペア:

[(1, 20797735), (5, 4159547), (7, 2971105), (35, 594221), (47, 442505), (235, 88501), (269, 77315), (329, 63215), (1345, 15463), (1645, 12643), (1883, 11045), (2209, 9415)]