20268738

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^2$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 54518400

約数和(自身を除く): 34249662

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 29, 42, 43, 54, 58, 63, 86, 87, 126, 129, 174, 189, 203, 258, 261, 301, 378, 387, 406, 522, 602, 609, 774, 783, 903, 1161, 1218, 1247, 1566, 1806, 1827, 1849, 2322, 2494, 2709, 3654, 3698, 3741, 5418, 5481, 5547, 7482, 8127, 8729, 10962, 11094, 11223, 12943, 16254, 16641, 17458, 22446, 25886, 26187, 33282, 33669, 38829, 49923, 52374, 53621, 67338, 77658, 78561, 99846, 107242, 116487, 157122, 160863, 232974, 235683, 321726, 349461, 375347, 471366, 482589, 698922, 750694, 965178, 1126041, 1447767, 2252082, 2895534, 3378123, 6756246, 10134369, 20268738]

約数ペア:

[(1, 20268738), (2, 10134369), (3, 6756246), (6, 3378123), (7, 2895534), (9, 2252082), (14, 1447767), (18, 1126041), (21, 965178), (27, 750694), (29, 698922), (42, 482589), (43, 471366), (54, 375347), (58, 349461), (63, 321726), (86, 235683), (87, 232974), (126, 160863), (129, 157122), (174, 116487), (189, 107242), (203, 99846), (258, 78561), (261, 77658), (301, 67338), (378, 53621), (387, 52374), (406, 49923), (522, 38829), (602, 33669), (609, 33282), (774, 26187), (783, 25886), (903, 22446), (1161, 17458), (1218, 16641), (1247, 16254), (1566, 12943), (1806, 11223), (1827, 11094), (1849, 10962), (2322, 8729), (2494, 8127), (2709, 7482), (3654, 5547), (3698, 5481), (3741, 5418)]