21171216

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 60406848

約数和(自身を除く): 39235632

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 101, 132, 176, 202, 264, 303, 397, 404, 528, 606, 794, 808, 1111, 1191, 1212, 1588, 1616, 2222, 2382, 2424, 3176, 3333, 4367, 4444, 4764, 4848, 6352, 6666, 8734, 8888, 9528, 13101, 13332, 17468, 17776, 19056, 26202, 26664, 34936, 40097, 52404, 53328, 69872, 80194, 104808, 120291, 160388, 209616, 240582, 320776, 441067, 481164, 641552, 882134, 962328, 1323201, 1764268, 1924656, 2646402, 3528536, 5292804, 7057072, 10585608, 21171216]

約数ペア:

[(1, 21171216), (2, 10585608), (3, 7057072), (4, 5292804), (6, 3528536), (8, 2646402), (11, 1924656), (12, 1764268), (16, 1323201), (22, 962328), (24, 882134), (33, 641552), (44, 481164), (48, 441067), (66, 320776), (88, 240582), (101, 209616), (132, 160388), (176, 120291), (202, 104808), (264, 80194), (303, 69872), (397, 53328), (404, 52404), (528, 40097), (606, 34936), (794, 26664), (808, 26202), (1111, 19056), (1191, 17776), (1212, 17468), (1588, 13332), (1616, 13101), (2222, 9528), (2382, 8888), (2424, 8734), (3176, 6666), (3333, 6352), (4367, 4848), (4444, 4764)]