20103908

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:668

約数の個数: 36

約数和(自身を含む): 39269580

約数和(自身を除く): 19165672

約数列:

[1, 2, 4, 11, 22, 44, 73, 121, 146, 242, 292, 484, 569, 803, 1138, 1606, 2276, 3212, 6259, 8833, 12518, 17666, 25036, 35332, 41537, 68849, 83074, 137698, 166148, 275396, 456907, 913814, 1827628, 5025977, 10051954, 20103908]

約数ペア:

[(1, 20103908), (2, 10051954), (4, 5025977), (11, 1827628), (22, 913814), (44, 456907), (73, 275396), (121, 166148), (146, 137698), (242, 83074), (292, 68849), (484, 41537), (569, 35332), (803, 25036), (1138, 17666), (1606, 12518), (2276, 8833), (3212, 6259)]