21757796

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{269}}^1\times {\mathrm{277}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 38881080

約数和(自身を除く): 17123284

約数列:

[1, 2, 4, 73, 146, 269, 277, 292, 538, 554, 1076, 1108, 19637, 20221, 39274, 40442, 74513, 78548, 80884, 149026, 298052, 5439449, 10878898, 21757796]

約数ペア:

[(1, 21757796), (2, 10878898), (4, 5439449), (73, 298052), (146, 149026), (269, 80884), (277, 78548), (292, 74513), (538, 40442), (554, 39274), (1076, 20221), (1108, 19637)]