21122856

素因数分解:

$2^3\times 3^4\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:936

約数の個数: 80

約数和(自身を含む): 60831540

約数和(自身を除く): 39708684

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 37, 54, 72, 74, 81, 108, 111, 148, 162, 216, 222, 296, 324, 333, 444, 648, 666, 881, 888, 999, 1332, 1762, 1998, 2643, 2664, 2997, 3524, 3996, 5286, 5994, 7048, 7929, 7992, 10572, 11988, 15858, 21144, 23787, 23976, 31716, 32597, 47574, 63432, 65194, 71361, 95148, 97791, 130388, 142722, 190296, 195582, 260776, 285444, 293373, 391164, 570888, 586746, 782328, 880119, 1173492, 1760238, 2346984, 2640357, 3520476, 5280714, 7040952, 10561428, 21122856]

約数ペア:

[(1, 21122856), (2, 10561428), (3, 7040952), (4, 5280714), (6, 3520476), (8, 2640357), (9, 2346984), (12, 1760238), (18, 1173492), (24, 880119), (27, 782328), (36, 586746), (37, 570888), (54, 391164), (72, 293373), (74, 285444), (81, 260776), (108, 195582), (111, 190296), (148, 142722), (162, 130388), (216, 97791), (222, 95148), (296, 71361), (324, 65194), (333, 63432), (444, 47574), (648, 32597), (666, 31716), (881, 23976), (888, 23787), (999, 21144), (1332, 15858), (1762, 11988), (1998, 10572), (2643, 7992), (2664, 7929), (2997, 7048), (3524, 5994), (3996, 5286)]