21495156

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4099}}^1$

素因数の和:4148

約数の個数: 48

約数和(自身を含む): 55104000

約数和(自身を除く): 33608844

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 38, 46, 57, 69, 76, 92, 114, 138, 228, 276, 437, 874, 1311, 1748, 2622, 4099, 5244, 8198, 12297, 16396, 24594, 49188, 77881, 94277, 155762, 188554, 233643, 282831, 311524, 377108, 467286, 565662, 934572, 1131324, 1791263, 3582526, 5373789, 7165052, 10747578, 21495156]

約数ペア:

[(1, 21495156), (2, 10747578), (3, 7165052), (4, 5373789), (6, 3582526), (12, 1791263), (19, 1131324), (23, 934572), (38, 565662), (46, 467286), (57, 377108), (69, 311524), (76, 282831), (92, 233643), (114, 188554), (138, 155762), (228, 94277), (276, 77881), (437, 49188), (874, 24594), (1311, 16396), (1748, 12297), (2622, 8198), (4099, 5244)]