20770685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18797}}^1$

素因数の和:18832

約数の個数: 16

約数和(自身を含む): 28422576

約数和(自身を除く): 7651891

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18797, 93985, 244361, 319549, 1221805, 1597745, 4154137, 20770685]

約数ペア:

[(1, 20770685), (5, 4154137), (13, 1597745), (17, 1221805), (65, 319549), (85, 244361), (221, 93985), (1105, 18797)]