18780606

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{863}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 27668034

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 93, 117, 186, 234, 279, 351, 403, 558, 702, 806, 837, 863, 1209, 1674, 1726, 2418, 2589, 3627, 5178, 7254, 7767, 10881, 11219, 15534, 21762, 22438, 23301, 26753, 33657, 46602, 53506, 67314, 80259, 100971, 160518, 201942, 240777, 302913, 347789, 481554, 605826, 695578, 722331, 1043367, 1444662, 2086734, 3130101, 6260202, 9390303, 18780606]

約数ペア:

[(1, 18780606), (2, 9390303), (3, 6260202), (6, 3130101), (9, 2086734), (13, 1444662), (18, 1043367), (26, 722331), (27, 695578), (31, 605826), (39, 481554), (54, 347789), (62, 302913), (78, 240777), (93, 201942), (117, 160518), (186, 100971), (234, 80259), (279, 67314), (351, 53506), (403, 46602), (558, 33657), (702, 26753), (806, 23301), (837, 22438), (863, 21762), (1209, 15534), (1674, 11219), (1726, 10881), (2418, 7767), (2589, 7254), (3627, 5178)]