20524959

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 38438400

約数和(自身を除く): 17913441

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1319, 1729, 2223, 3957, 5187, 9233, 11871, 15561, 17147, 25061, 27699, 51441, 75183, 83097, 120029, 154323, 175427, 225549, 325793, 360087, 526281, 977379, 1080261, 1578843, 2280551, 2932137, 6841653, 20524959]

約数ペア:

[(1, 20524959), (3, 6841653), (7, 2932137), (9, 2280551), (13, 1578843), (19, 1080261), (21, 977379), (39, 526281), (57, 360087), (63, 325793), (91, 225549), (117, 175427), (133, 154323), (171, 120029), (247, 83097), (273, 75183), (399, 51441), (741, 27699), (819, 25061), (1197, 17147), (1319, 15561), (1729, 11871), (2223, 9233), (3957, 5187)]