21031912

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1201}}^1$

素因数の和:1417

約数の個数: 32

約数和(自身を含む): 43272000

約数和(自身を除く): 22240088

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 199, 398, 796, 1201, 1592, 2189, 2402, 4378, 4804, 8756, 9608, 13211, 17512, 26422, 52844, 105688, 238999, 477998, 955996, 1911992, 2628989, 5257978, 10515956, 21031912]

約数ペア:

[(1, 21031912), (2, 10515956), (4, 5257978), (8, 2628989), (11, 1911992), (22, 955996), (44, 477998), (88, 238999), (199, 105688), (398, 52844), (796, 26422), (1201, 17512), (1592, 13211), (2189, 9608), (2402, 8756), (4378, 4804)]