20209398

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{7121}}^1$

素因数の和:7180

約数の個数: 32

約数和(自身を含む): 45124992

約数和(自身を除く): 24915594

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 7121, 14242, 21363, 42726, 78331, 156662, 234993, 306203, 469986, 612406, 918609, 1837218, 3368233, 6736466, 10104699, 20209398]

約数ペア:

[(1, 20209398), (2, 10104699), (3, 6736466), (6, 3368233), (11, 1837218), (22, 918609), (33, 612406), (43, 469986), (66, 306203), (86, 234993), (129, 156662), (258, 78331), (473, 42726), (946, 21363), (1419, 14242), (2838, 7121)]