21355818

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1451}}^1$

素因数の和:1690

約数の個数: 32

約数和(自身を含む): 46835712

約数和(自身を除く): 25479894

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 223, 446, 669, 1338, 1451, 2453, 2902, 4353, 4906, 7359, 8706, 14718, 15961, 31922, 47883, 95766, 323573, 647146, 970719, 1941438, 3559303, 7118606, 10677909, 21355818]

約数ペア:

[(1, 21355818), (2, 10677909), (3, 7118606), (6, 3559303), (11, 1941438), (22, 970719), (33, 647146), (66, 323573), (223, 95766), (446, 47883), (669, 31922), (1338, 15961), (1451, 14718), (2453, 8706), (2902, 7359), (4353, 4906)]