20470505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{1031}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 28309824

約数和(自身を除く): 7839319

約数列:

[1, 5, 11, 19, 55, 95, 209, 361, 1031, 1045, 1805, 3971, 5155, 11341, 19589, 19855, 56705, 97945, 215479, 372191, 1077395, 1860955, 4094101, 20470505]

約数ペア:

[(1, 20470505), (5, 4094101), (11, 1860955), (19, 1077395), (55, 372191), (95, 215479), (209, 97945), (361, 56705), (1031, 19855), (1045, 19589), (1805, 11341), (3971, 5155)]