18978372

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{593}}^1$

素因数の和:737

約数の個数: 72

約数和(自身を含む): 55351296

約数和(自身を除く): 36372924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 593, 762, 889, 1143, 1186, 1524, 1778, 1779, 2286, 2372, 2667, 3556, 3558, 4151, 4572, 5334, 5337, 7116, 8001, 8302, 10668, 10674, 12453, 16002, 16604, 21348, 24906, 32004, 37359, 49812, 74718, 75311, 149436, 150622, 225933, 301244, 451866, 527177, 677799, 903732, 1054354, 1355598, 1581531, 2108708, 2711196, 3163062, 4744593, 6326124, 9489186, 18978372]

約数ペア:

[(1, 18978372), (2, 9489186), (3, 6326124), (4, 4744593), (6, 3163062), (7, 2711196), (9, 2108708), (12, 1581531), (14, 1355598), (18, 1054354), (21, 903732), (28, 677799), (36, 527177), (42, 451866), (63, 301244), (84, 225933), (126, 150622), (127, 149436), (252, 75311), (254, 74718), (381, 49812), (508, 37359), (593, 32004), (762, 24906), (889, 21348), (1143, 16604), (1186, 16002), (1524, 12453), (1778, 10674), (1779, 10668), (2286, 8302), (2372, 8001), (2667, 7116), (3556, 5337), (3558, 5334), (4151, 4572)]