21381724

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{58741}}^1$

素因数の和:58765

約数の個数: 24

約数和(自身を含む): 46053728

約数和(自身を除く): 24672004

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 58741, 117482, 234964, 411187, 763633, 822374, 1527266, 1644748, 3054532, 5345431, 10690862, 21381724]

約数ペア:

[(1, 21381724), (2, 10690862), (4, 5345431), (7, 3054532), (13, 1644748), (14, 1527266), (26, 822374), (28, 763633), (52, 411187), (91, 234964), (182, 117482), (364, 58741)]