20618572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:586

約数の個数: 48

約数和(自身を含む): 41983200

約数和(自身を除く): 21364628

約数列:

[1, 2, 4, 13, 19, 26, 38, 41, 52, 76, 82, 164, 247, 494, 509, 533, 779, 988, 1018, 1066, 1558, 2036, 2132, 3116, 6617, 9671, 10127, 13234, 19342, 20254, 20869, 26468, 38684, 40508, 41738, 83476, 125723, 251446, 271297, 396511, 502892, 542594, 793022, 1085188, 1586044, 5154643, 10309286, 20618572]

約数ペア:

[(1, 20618572), (2, 10309286), (4, 5154643), (13, 1586044), (19, 1085188), (26, 793022), (38, 542594), (41, 502892), (52, 396511), (76, 271297), (82, 251446), (164, 125723), (247, 83476), (494, 41738), (509, 40508), (533, 38684), (779, 26468), (988, 20869), (1018, 20254), (1066, 19342), (1558, 13234), (2036, 10127), (2132, 9671), (3116, 6617)]