213028990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{929}}^1\times {\mathrm{997}}^1$

素因数の和:1956

約数の個数: 32

約数和(自身を含む): 400956480

約数和(自身を除く): 187927490

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 929, 997, 1858, 1994, 4645, 4985, 9290, 9970, 21367, 22931, 42734, 45862, 106835, 114655, 213670, 229310, 926213, 1852426, 4631065, 9262130, 21302899, 42605798, 106514495, 213028990]

約数ペア:

[(1, 213028990), (2, 106514495), (5, 42605798), (10, 21302899), (23, 9262130), (46, 4631065), (115, 1852426), (230, 926213), (929, 229310), (997, 213670), (1858, 114655), (1994, 106835), (4645, 45862), (4985, 42734), (9290, 22931), (9970, 21367)]