21680424

素因数分解:

$2^3\times 3^2\times {\mathrm{127}}^1\times {\mathrm{2371}}^1$

素因数の和:2510

約数の個数: 48

約数和(自身を含む): 59205120

約数和(自身を除く): 37524696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 127, 254, 381, 508, 762, 1016, 1143, 1524, 2286, 2371, 3048, 4572, 4742, 7113, 9144, 9484, 14226, 18968, 21339, 28452, 42678, 56904, 85356, 170712, 301117, 602234, 903351, 1204468, 1806702, 2408936, 2710053, 3613404, 5420106, 7226808, 10840212, 21680424]

約数ペア:

[(1, 21680424), (2, 10840212), (3, 7226808), (4, 5420106), (6, 3613404), (8, 2710053), (9, 2408936), (12, 1806702), (18, 1204468), (24, 903351), (36, 602234), (72, 301117), (127, 170712), (254, 85356), (381, 56904), (508, 42678), (762, 28452), (1016, 21339), (1143, 18968), (1524, 14226), (2286, 9484), (2371, 9144), (3048, 7113), (4572, 4742)]