21216866

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{1201}}^1$

素因数の和:1298

約数の個数: 24

約数和(自身を含む): 35490252

約数和(自身を除く): 14273386

約数列:

[1, 2, 11, 22, 73, 121, 146, 242, 803, 1201, 1606, 2402, 8833, 13211, 17666, 26422, 87673, 145321, 175346, 290642, 964403, 1928806, 10608433, 21216866]

約数ペア:

[(1, 21216866), (2, 10608433), (11, 1928806), (22, 964403), (73, 290642), (121, 175346), (146, 145321), (242, 87673), (803, 26422), (1201, 17666), (1606, 13211), (2402, 8833)]