21388836

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2861}}^1$

素因数の和:2964

約数の個数: 48

約数和(自身を含む): 57697920

約数和(自身を除く): 36309084

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 89, 178, 267, 356, 534, 623, 1068, 1246, 1869, 2492, 2861, 3738, 5722, 7476, 8583, 11444, 17166, 20027, 34332, 40054, 60081, 80108, 120162, 240324, 254629, 509258, 763887, 1018516, 1527774, 1782403, 3055548, 3564806, 5347209, 7129612, 10694418, 21388836]

約数ペア:

[(1, 21388836), (2, 10694418), (3, 7129612), (4, 5347209), (6, 3564806), (7, 3055548), (12, 1782403), (14, 1527774), (21, 1018516), (28, 763887), (42, 509258), (84, 254629), (89, 240324), (178, 120162), (267, 80108), (356, 60081), (534, 40054), (623, 34332), (1068, 20027), (1246, 17166), (1869, 11444), (2492, 8583), (2861, 7476), (3738, 5722)]