18199965

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 35481600

約数和(自身を除く): 17281635

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 43, 87, 105, 129, 139, 145, 203, 215, 301, 417, 435, 609, 645, 695, 903, 973, 1015, 1247, 1505, 2085, 2919, 3045, 3741, 4031, 4515, 4865, 5977, 6235, 8729, 12093, 14595, 17931, 18705, 20155, 26187, 28217, 29885, 41839, 43645, 60465, 84651, 89655, 125517, 130935, 141085, 173333, 209195, 423255, 519999, 627585, 866665, 1213331, 2599995, 3639993, 6066655, 18199965]

約数ペア:

[(1, 18199965), (3, 6066655), (5, 3639993), (7, 2599995), (15, 1213331), (21, 866665), (29, 627585), (35, 519999), (43, 423255), (87, 209195), (105, 173333), (129, 141085), (139, 130935), (145, 125517), (203, 89655), (215, 84651), (301, 60465), (417, 43645), (435, 41839), (609, 29885), (645, 28217), (695, 26187), (903, 20155), (973, 18705), (1015, 17931), (1247, 14595), (1505, 12093), (2085, 8729), (2919, 6235), (3045, 5977), (3741, 4865), (4031, 4515)]