21746740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{383}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 27024332

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 167, 170, 334, 340, 383, 668, 766, 835, 1532, 1670, 1915, 2839, 3340, 3830, 5678, 6511, 7660, 11356, 13022, 14195, 26044, 28390, 32555, 56780, 63961, 65110, 127922, 130220, 255844, 319805, 639610, 1087337, 1279220, 2174674, 4349348, 5436685, 10873370, 21746740]

約数ペア:

[(1, 21746740), (2, 10873370), (4, 5436685), (5, 4349348), (10, 2174674), (17, 1279220), (20, 1087337), (34, 639610), (68, 319805), (85, 255844), (167, 130220), (170, 127922), (334, 65110), (340, 63961), (383, 56780), (668, 32555), (766, 28390), (835, 26044), (1532, 14195), (1670, 13022), (1915, 11356), (2839, 7660), (3340, 6511), (3830, 5678)]