21406608

素因数分解:

$2^4\times 3^2\times {\mathrm{61}}^1\times {\mathrm{2437}}^1$

素因数の和:2512

約数の個数: 60

約数和(自身を含む): 60915868

約数和(自身を除く): 39509260

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 61, 72, 122, 144, 183, 244, 366, 488, 549, 732, 976, 1098, 1464, 2196, 2437, 2928, 4392, 4874, 7311, 8784, 9748, 14622, 19496, 21933, 29244, 38992, 43866, 58488, 87732, 116976, 148657, 175464, 297314, 350928, 445971, 594628, 891942, 1189256, 1337913, 1783884, 2378512, 2675826, 3567768, 5351652, 7135536, 10703304, 21406608]

約数ペア:

[(1, 21406608), (2, 10703304), (3, 7135536), (4, 5351652), (6, 3567768), (8, 2675826), (9, 2378512), (12, 1783884), (16, 1337913), (18, 1189256), (24, 891942), (36, 594628), (48, 445971), (61, 350928), (72, 297314), (122, 175464), (144, 148657), (183, 116976), (244, 87732), (366, 58488), (488, 43866), (549, 38992), (732, 29244), (976, 21933), (1098, 19496), (1464, 14622), (2196, 9748), (2437, 8784), (2928, 7311), (4392, 4874)]