18742276

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 39155200

約数和(自身を除く): 20412924

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 79, 148, 158, 229, 259, 316, 458, 518, 553, 916, 1036, 1106, 1603, 2212, 2923, 3206, 5846, 6412, 8473, 11692, 16946, 18091, 20461, 33892, 36182, 40922, 59311, 72364, 81844, 118622, 126637, 237244, 253274, 506548, 669367, 1338734, 2677468, 4685569, 9371138, 18742276]

約数ペア:

[(1, 18742276), (2, 9371138), (4, 4685569), (7, 2677468), (14, 1338734), (28, 669367), (37, 506548), (74, 253274), (79, 237244), (148, 126637), (158, 118622), (229, 81844), (259, 72364), (316, 59311), (458, 40922), (518, 36182), (553, 33892), (916, 20461), (1036, 18091), (1106, 16946), (1603, 11692), (2212, 8473), (2923, 6412), (3206, 5846)]