20878668

素因数分解:

$2^2\times 3^3\times {\mathrm{97}}^1\times {\mathrm{1993}}^1$

素因数の和:2103

約数の個数: 48

約数和(自身を含む): 54715360

約数和(自身を除く): 33836692

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 97, 108, 194, 291, 388, 582, 873, 1164, 1746, 1993, 2619, 3492, 3986, 5238, 5979, 7972, 10476, 11958, 17937, 23916, 35874, 53811, 71748, 107622, 193321, 215244, 386642, 579963, 773284, 1159926, 1739889, 2319852, 3479778, 5219667, 6959556, 10439334, 20878668]

約数ペア:

[(1, 20878668), (2, 10439334), (3, 6959556), (4, 5219667), (6, 3479778), (9, 2319852), (12, 1739889), (18, 1159926), (27, 773284), (36, 579963), (54, 386642), (97, 215244), (108, 193321), (194, 107622), (291, 71748), (388, 53811), (582, 35874), (873, 23916), (1164, 17937), (1746, 11958), (1993, 10476), (2619, 7972), (3492, 5979), (3986, 5238)]