20724219

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1889}}^1$

素因数の和:1971

約数の個数: 24

約数和(自身を含む): 31842720

約数和(自身を除く): 11118501

約数列:

[1, 3, 9, 23, 53, 69, 159, 207, 477, 1219, 1889, 3657, 5667, 10971, 17001, 43447, 100117, 130341, 300351, 391023, 901053, 2302691, 6908073, 20724219]

約数ペア:

[(1, 20724219), (3, 6908073), (9, 2302691), (23, 901053), (53, 391023), (69, 300351), (159, 130341), (207, 100117), (477, 43447), (1219, 17001), (1889, 10971), (3657, 5667)]