19319685

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 20216955

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 43, 55, 77, 105, 129, 165, 215, 231, 301, 385, 389, 473, 645, 903, 1155, 1167, 1419, 1505, 1945, 2365, 2723, 3311, 4279, 4515, 5835, 7095, 8169, 9933, 12837, 13615, 16555, 16727, 21395, 29953, 40845, 49665, 50181, 64185, 83635, 89859, 117089, 149765, 183997, 250905, 351267, 449295, 551991, 585445, 919985, 1287979, 1756335, 2759955, 3863937, 6439895, 19319685]

約数ペア:

[(1, 19319685), (3, 6439895), (5, 3863937), (7, 2759955), (11, 1756335), (15, 1287979), (21, 919985), (33, 585445), (35, 551991), (43, 449295), (55, 351267), (77, 250905), (105, 183997), (129, 149765), (165, 117089), (215, 89859), (231, 83635), (301, 64185), (385, 50181), (389, 49665), (473, 40845), (645, 29953), (903, 21395), (1155, 16727), (1167, 16555), (1419, 13615), (1505, 12837), (1945, 9933), (2365, 8169), (2723, 7095), (3311, 5835), (4279, 4515)]