19743984

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 60933600

約数和(自身を除く): 41189616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 53, 72, 78, 104, 106, 117, 144, 156, 159, 199, 208, 212, 234, 312, 318, 398, 424, 468, 477, 597, 624, 636, 689, 796, 848, 936, 954, 1194, 1272, 1378, 1592, 1791, 1872, 1908, 2067, 2388, 2544, 2587, 2756, 3184, 3582, 3816, 4134, 4776, 5174, 5512, 6201, 7164, 7632, 7761, 8268, 9552, 10348, 10547, 11024, 12402, 14328, 15522, 16536, 20696, 21094, 23283, 24804, 28656, 31044, 31641, 33072, 41392, 42188, 46566, 49608, 62088, 63282, 84376, 93132, 94923, 99216, 124176, 126564, 137111, 168752, 186264, 189846, 253128, 274222, 372528, 379692, 411333, 506256, 548444, 759384, 822666, 1096888, 1233999, 1518768, 1645332, 2193776, 2467998, 3290664, 4935996, 6581328, 9871992, 19743984]

約数ペア:

[(1, 19743984), (2, 9871992), (3, 6581328), (4, 4935996), (6, 3290664), (8, 2467998), (9, 2193776), (12, 1645332), (13, 1518768), (16, 1233999), (18, 1096888), (24, 822666), (26, 759384), (36, 548444), (39, 506256), (48, 411333), (52, 379692), (53, 372528), (72, 274222), (78, 253128), (104, 189846), (106, 186264), (117, 168752), (144, 137111), (156, 126564), (159, 124176), (199, 99216), (208, 94923), (212, 93132), (234, 84376), (312, 63282), (318, 62088), (398, 49608), (424, 46566), (468, 42188), (477, 41392), (597, 33072), (624, 31641), (636, 31044), (689, 28656), (796, 24804), (848, 23283), (936, 21094), (954, 20696), (1194, 16536), (1272, 15522), (1378, 14328), (1592, 12402), (1791, 11024), (1872, 10547), (1908, 10348), (2067, 9552), (2388, 8268), (2544, 7761), (2587, 7632), (2756, 7164), (3184, 6201), (3582, 5512), (3816, 5174), (4134, 4776)]