20345908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:484

約数の個数: 36

約数和(自身を含む): 39563776

約数和(自身を除く): 19217868

約数列:

[1, 2, 4, 11, 22, 44, 121, 127, 242, 254, 331, 484, 508, 662, 1324, 1397, 2794, 3641, 5588, 7282, 14564, 15367, 30734, 40051, 42037, 61468, 80102, 84074, 160204, 168148, 462407, 924814, 1849628, 5086477, 10172954, 20345908]

約数ペア:

[(1, 20345908), (2, 10172954), (4, 5086477), (11, 1849628), (22, 924814), (44, 462407), (121, 168148), (127, 160204), (242, 84074), (254, 80102), (331, 61468), (484, 42037), (508, 40051), (662, 30734), (1324, 15367), (1397, 14564), (2794, 7282), (3641, 5588)]