21284010

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21499}}^1$

素因数の和:21523

約数の個数: 48

約数和(自身を含む): 60372000

約数和(自身を除く): 39087990

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 21499, 42998, 64497, 107495, 128994, 193491, 214990, 236489, 322485, 386982, 472978, 644970, 709467, 967455, 1182445, 1418934, 1934910, 2128401, 2364890, 3547335, 4256802, 7094670, 10642005, 21284010]

約数ペア:

[(1, 21284010), (2, 10642005), (3, 7094670), (5, 4256802), (6, 3547335), (9, 2364890), (10, 2128401), (11, 1934910), (15, 1418934), (18, 1182445), (22, 967455), (30, 709467), (33, 644970), (45, 472978), (55, 386982), (66, 322485), (90, 236489), (99, 214990), (110, 193491), (165, 128994), (198, 107495), (330, 64497), (495, 42998), (990, 21499)]