291210381

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{347}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 538428384

約数和(自身を除く): 247218003

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 173, 231, 347, 441, 519, 539, 693, 1041, 1211, 1557, 1617, 1903, 2429, 3123, 3633, 3817, 4851, 5709, 7287, 8477, 10899, 11451, 13321, 17003, 17127, 21861, 25431, 26719, 34353, 39963, 51009, 60031, 76293, 80157, 93247, 119889, 153027, 180093, 187033, 240471, 279741, 420217, 540279, 561099, 660341, 839223, 1260651, 1683297, 1981023, 2941519, 3781953, 4622387, 5943069, 8824557, 13867161, 26473671, 32356709, 41601483, 97070127, 291210381]

約数ペア:

[(1, 291210381), (3, 97070127), (7, 41601483), (9, 32356709), (11, 26473671), (21, 13867161), (33, 8824557), (49, 5943069), (63, 4622387), (77, 3781953), (99, 2941519), (147, 1981023), (173, 1683297), (231, 1260651), (347, 839223), (441, 660341), (519, 561099), (539, 540279), (693, 420217), (1041, 279741), (1211, 240471), (1557, 187033), (1617, 180093), (1903, 153027), (2429, 119889), (3123, 93247), (3633, 80157), (3817, 76293), (4851, 60031), (5709, 51009), (7287, 39963), (8477, 34353), (10899, 26719), (11451, 25431), (13321, 21861), (17003, 17127)]