19815696

素因数分解:

$2^4\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 60043776

約数和(自身を除く): 40228080

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 31, 36, 46, 48, 62, 69, 72, 92, 93, 124, 138, 144, 184, 186, 193, 207, 248, 276, 279, 368, 372, 386, 414, 496, 552, 558, 579, 713, 744, 772, 828, 1104, 1116, 1158, 1426, 1488, 1544, 1656, 1737, 2139, 2232, 2316, 2852, 3088, 3312, 3474, 4278, 4439, 4464, 4632, 5704, 5983, 6417, 6948, 8556, 8878, 9264, 11408, 11966, 12834, 13317, 13896, 17112, 17756, 17949, 23932, 25668, 26634, 27792, 34224, 35512, 35898, 39951, 47864, 51336, 53268, 53847, 71024, 71796, 79902, 95728, 102672, 106536, 107694, 137609, 143592, 159804, 213072, 215388, 275218, 287184, 319608, 412827, 430776, 550436, 639216, 825654, 861552, 1100872, 1238481, 1651308, 2201744, 2476962, 3302616, 4953924, 6605232, 9907848, 19815696]

約数ペア:

[(1, 19815696), (2, 9907848), (3, 6605232), (4, 4953924), (6, 3302616), (8, 2476962), (9, 2201744), (12, 1651308), (16, 1238481), (18, 1100872), (23, 861552), (24, 825654), (31, 639216), (36, 550436), (46, 430776), (48, 412827), (62, 319608), (69, 287184), (72, 275218), (92, 215388), (93, 213072), (124, 159804), (138, 143592), (144, 137609), (184, 107694), (186, 106536), (193, 102672), (207, 95728), (248, 79902), (276, 71796), (279, 71024), (368, 53847), (372, 53268), (386, 51336), (414, 47864), (496, 39951), (552, 35898), (558, 35512), (579, 34224), (713, 27792), (744, 26634), (772, 25668), (828, 23932), (1104, 17949), (1116, 17756), (1158, 17112), (1426, 13896), (1488, 13317), (1544, 12834), (1656, 11966), (1737, 11408), (2139, 9264), (2232, 8878), (2316, 8556), (2852, 6948), (3088, 6417), (3312, 5983), (3474, 5704), (4278, 4632), (4439, 4464)]