17939944

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 19981016

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 121, 172, 242, 344, 431, 473, 484, 862, 946, 968, 1724, 1892, 3448, 3784, 4741, 5203, 9482, 10406, 18533, 18964, 20812, 37066, 37928, 41624, 52151, 74132, 104302, 148264, 203863, 208604, 407726, 417208, 815452, 1630904, 2242493, 4484986, 8969972, 17939944]

約数ペア:

[(1, 17939944), (2, 8969972), (4, 4484986), (8, 2242493), (11, 1630904), (22, 815452), (43, 417208), (44, 407726), (86, 208604), (88, 203863), (121, 148264), (172, 104302), (242, 74132), (344, 52151), (431, 41624), (473, 37928), (484, 37066), (862, 20812), (946, 18964), (968, 18533), (1724, 10406), (1892, 9482), (3448, 5203), (3784, 4741)]