18263868

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 50274000

約数和(自身を除く): 32010132

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 89, 98, 147, 178, 196, 267, 294, 349, 356, 534, 588, 623, 698, 1047, 1068, 1246, 1396, 1869, 2094, 2443, 2492, 3738, 4188, 4361, 4886, 7329, 7476, 8722, 9772, 13083, 14658, 17101, 17444, 26166, 29316, 31061, 34202, 51303, 52332, 62122, 68404, 93183, 102606, 124244, 186366, 205212, 217427, 372732, 434854, 652281, 869708, 1304562, 1521989, 2609124, 3043978, 4565967, 6087956, 9131934, 18263868]

約数ペア:

[(1, 18263868), (2, 9131934), (3, 6087956), (4, 4565967), (6, 3043978), (7, 2609124), (12, 1521989), (14, 1304562), (21, 869708), (28, 652281), (42, 434854), (49, 372732), (84, 217427), (89, 205212), (98, 186366), (147, 124244), (178, 102606), (196, 93183), (267, 68404), (294, 62122), (349, 52332), (356, 51303), (534, 34202), (588, 31061), (623, 29316), (698, 26166), (1047, 17444), (1068, 17101), (1246, 14658), (1396, 13083), (1869, 9772), (2094, 8722), (2443, 7476), (2492, 7329), (3738, 4886), (4188, 4361)]