19990368

素因数分解:

$2^5\times 3^3\times {\mathrm{17}}^1\times {\mathrm{1361}}^1$

素因数の和:1397

約数の個数: 96

約数和(自身を含む): 61780320

約数和(自身を除く): 41789952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 32, 34, 36, 48, 51, 54, 68, 72, 96, 102, 108, 136, 144, 153, 204, 216, 272, 288, 306, 408, 432, 459, 544, 612, 816, 864, 918, 1224, 1361, 1632, 1836, 2448, 2722, 3672, 4083, 4896, 5444, 7344, 8166, 10888, 12249, 14688, 16332, 21776, 23137, 24498, 32664, 36747, 43552, 46274, 48996, 65328, 69411, 73494, 92548, 97992, 130656, 138822, 146988, 185096, 195984, 208233, 277644, 293976, 370192, 391968, 416466, 555288, 587952, 624699, 740384, 832932, 1110576, 1175904, 1249398, 1665864, 2221152, 2498796, 3331728, 4997592, 6663456, 9995184, 19990368]

約数ペア:

[(1, 19990368), (2, 9995184), (3, 6663456), (4, 4997592), (6, 3331728), (8, 2498796), (9, 2221152), (12, 1665864), (16, 1249398), (17, 1175904), (18, 1110576), (24, 832932), (27, 740384), (32, 624699), (34, 587952), (36, 555288), (48, 416466), (51, 391968), (54, 370192), (68, 293976), (72, 277644), (96, 208233), (102, 195984), (108, 185096), (136, 146988), (144, 138822), (153, 130656), (204, 97992), (216, 92548), (272, 73494), (288, 69411), (306, 65328), (408, 48996), (432, 46274), (459, 43552), (544, 36747), (612, 32664), (816, 24498), (864, 23137), (918, 21776), (1224, 16332), (1361, 14688), (1632, 12249), (1836, 10888), (2448, 8166), (2722, 7344), (3672, 5444), (4083, 4896)]