19997856

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^1\times {\mathrm{3019}}^1$

素因数の和:3058

約数の個数: 72

約数和(自身を含む): 59361120

約数和(自身を除く): 39363264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 138, 144, 184, 207, 276, 288, 368, 414, 552, 736, 828, 1104, 1656, 2208, 3019, 3312, 6038, 6624, 9057, 12076, 18114, 24152, 27171, 36228, 48304, 54342, 69437, 72456, 96608, 108684, 138874, 144912, 208311, 217368, 277748, 289824, 416622, 434736, 555496, 624933, 833244, 869472, 1110992, 1249866, 1666488, 2221984, 2499732, 3332976, 4999464, 6665952, 9998928, 19997856]

約数ペア:

[(1, 19997856), (2, 9998928), (3, 6665952), (4, 4999464), (6, 3332976), (8, 2499732), (9, 2221984), (12, 1666488), (16, 1249866), (18, 1110992), (23, 869472), (24, 833244), (32, 624933), (36, 555496), (46, 434736), (48, 416622), (69, 289824), (72, 277748), (92, 217368), (96, 208311), (138, 144912), (144, 138874), (184, 108684), (207, 96608), (276, 72456), (288, 69437), (368, 54342), (414, 48304), (552, 36228), (736, 27171), (828, 24152), (1104, 18114), (1656, 12076), (2208, 9057), (3019, 6624), (3312, 6038)]