21565212

素因数分解:

$2^2\times 3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2066

約数の個数: 48

約数和(自身を含む): 53760000

約数和(自身を除く): 32194788

約数列:

[1, 2, 3, 4, 6, 12, 29, 31, 58, 62, 87, 93, 116, 124, 174, 186, 348, 372, 899, 1798, 1999, 2697, 3596, 3998, 5394, 5997, 7996, 10788, 11994, 23988, 57971, 61969, 115942, 123938, 173913, 185907, 231884, 247876, 347826, 371814, 695652, 743628, 1797101, 3594202, 5391303, 7188404, 10782606, 21565212]

約数ペア:

[(1, 21565212), (2, 10782606), (3, 7188404), (4, 5391303), (6, 3594202), (12, 1797101), (29, 743628), (31, 695652), (58, 371814), (62, 347826), (87, 247876), (93, 231884), (116, 185907), (124, 173913), (174, 123938), (186, 115942), (348, 61969), (372, 57971), (899, 23988), (1798, 11994), (1999, 10788), (2697, 7996), (3596, 5997), (3998, 5394)]