21271968

素因数分解:

$2^5\times 3^2\times {\mathrm{233}}^1\times {\mathrm{317}}^1$

素因数の和:566

約数の個数: 72

約数和(自身を含む): 60943428

約数和(自身を除く): 39671460

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 233, 288, 317, 466, 634, 699, 932, 951, 1268, 1398, 1864, 1902, 2097, 2536, 2796, 2853, 3728, 3804, 4194, 5072, 5592, 5706, 7456, 7608, 8388, 10144, 11184, 11412, 15216, 16776, 22368, 22824, 30432, 33552, 45648, 67104, 73861, 91296, 147722, 221583, 295444, 443166, 590888, 664749, 886332, 1181776, 1329498, 1772664, 2363552, 2658996, 3545328, 5317992, 7090656, 10635984, 21271968]

約数ペア:

[(1, 21271968), (2, 10635984), (3, 7090656), (4, 5317992), (6, 3545328), (8, 2658996), (9, 2363552), (12, 1772664), (16, 1329498), (18, 1181776), (24, 886332), (32, 664749), (36, 590888), (48, 443166), (72, 295444), (96, 221583), (144, 147722), (233, 91296), (288, 73861), (317, 67104), (466, 45648), (634, 33552), (699, 30432), (932, 22824), (951, 22368), (1268, 16776), (1398, 15216), (1864, 11412), (1902, 11184), (2097, 10144), (2536, 8388), (2796, 7608), (2853, 7456), (3728, 5706), (3804, 5592), (4194, 5072)]