20969286

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 26447034

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 79, 82, 83, 123, 158, 166, 237, 246, 249, 474, 498, 533, 1027, 1066, 1079, 1599, 2054, 2158, 3081, 3198, 3237, 3239, 3403, 6162, 6474, 6478, 6557, 6806, 9717, 10209, 13114, 19434, 19671, 20418, 39342, 42107, 44239, 84214, 85241, 88478, 126321, 132717, 170482, 252642, 255723, 265434, 268837, 511446, 537674, 806511, 1613022, 3494881, 6989762, 10484643, 20969286]

約数ペア:

[(1, 20969286), (2, 10484643), (3, 6989762), (6, 3494881), (13, 1613022), (26, 806511), (39, 537674), (41, 511446), (78, 268837), (79, 265434), (82, 255723), (83, 252642), (123, 170482), (158, 132717), (166, 126321), (237, 88478), (246, 85241), (249, 84214), (474, 44239), (498, 42107), (533, 39342), (1027, 20418), (1066, 19671), (1079, 19434), (1599, 13114), (2054, 10209), (2158, 9717), (3081, 6806), (3198, 6557), (3237, 6478), (3239, 6474), (3403, 6162)]