18850216

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 25939544

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 71, 77, 88, 142, 154, 284, 308, 431, 497, 568, 616, 781, 862, 994, 1562, 1724, 1988, 3017, 3124, 3448, 3976, 4741, 5467, 6034, 6248, 9482, 10934, 12068, 18964, 21868, 24136, 30601, 33187, 37928, 43736, 61202, 66374, 122404, 132748, 214207, 244808, 265496, 336611, 428414, 673222, 856828, 1346444, 1713656, 2356277, 2692888, 4712554, 9425108, 18850216]

約数ペア:

[(1, 18850216), (2, 9425108), (4, 4712554), (7, 2692888), (8, 2356277), (11, 1713656), (14, 1346444), (22, 856828), (28, 673222), (44, 428414), (56, 336611), (71, 265496), (77, 244808), (88, 214207), (142, 132748), (154, 122404), (284, 66374), (308, 61202), (431, 43736), (497, 37928), (568, 33187), (616, 30601), (781, 24136), (862, 21868), (994, 18964), (1562, 12068), (1724, 10934), (1988, 9482), (3017, 6248), (3124, 6034), (3448, 5467), (3976, 4741)]