19668438

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{919}}^1$

素因数の和:997

約数の個数: 48

約数和(自身を含む): 45208800

約数和(自身を除く): 25540362

約数列:

[1, 2, 3, 6, 9, 18, 29, 41, 58, 82, 87, 123, 174, 246, 261, 369, 522, 738, 919, 1189, 1838, 2378, 2757, 3567, 5514, 7134, 8271, 10701, 16542, 21402, 26651, 37679, 53302, 75358, 79953, 113037, 159906, 226074, 239859, 339111, 479718, 678222, 1092691, 2185382, 3278073, 6556146, 9834219, 19668438]

約数ペア:

[(1, 19668438), (2, 9834219), (3, 6556146), (6, 3278073), (9, 2185382), (18, 1092691), (29, 678222), (41, 479718), (58, 339111), (82, 239859), (87, 226074), (123, 159906), (174, 113037), (246, 79953), (261, 75358), (369, 53302), (522, 37679), (738, 26651), (919, 21402), (1189, 16542), (1838, 10701), (2378, 8271), (2757, 7134), (3567, 5514)]