21394670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 48

約数和(自身を含む): 44694288

約数和(自身を除く): 23299618

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 673, 935, 1346, 1445, 1870, 2890, 3179, 3365, 6358, 6730, 7403, 11441, 14806, 15895, 22882, 31790, 37015, 57205, 74030, 114410, 125851, 194497, 251702, 388994, 629255, 972485, 1258510, 1944970, 2139467, 4278934, 10697335, 21394670]

約数ペア:

[(1, 21394670), (2, 10697335), (5, 4278934), (10, 2139467), (11, 1944970), (17, 1258510), (22, 972485), (34, 629255), (55, 388994), (85, 251702), (110, 194497), (170, 125851), (187, 114410), (289, 74030), (374, 57205), (578, 37015), (673, 31790), (935, 22882), (1346, 15895), (1445, 14806), (1870, 11441), (2890, 7403), (3179, 6730), (3365, 6358)]