21083480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47917}}^1$

素因数の和:47939

約数の個数: 32

約数和(自身を含む): 51751440

約数和(自身を除く): 30667960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47917, 95834, 191668, 239585, 383336, 479170, 527087, 958340, 1054174, 1916680, 2108348, 2635435, 4216696, 5270870, 10541740, 21083480]

約数ペア:

[(1, 21083480), (2, 10541740), (4, 5270870), (5, 4216696), (8, 2635435), (10, 2108348), (11, 1916680), (20, 1054174), (22, 958340), (40, 527087), (44, 479170), (55, 383336), (88, 239585), (110, 191668), (220, 95834), (440, 47917)]