21099272

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1093}}^1$

素因数の和:1245

約数の個数: 32

約数和(自身を含む): 42009600

約数和(自身を除く): 20910328

約数列:

[1, 2, 4, 8, 19, 38, 76, 127, 152, 254, 508, 1016, 1093, 2186, 2413, 4372, 4826, 8744, 9652, 19304, 20767, 41534, 83068, 138811, 166136, 277622, 555244, 1110488, 2637409, 5274818, 10549636, 21099272]

約数ペア:

[(1, 21099272), (2, 10549636), (4, 5274818), (8, 2637409), (19, 1110488), (38, 555244), (76, 277622), (127, 166136), (152, 138811), (254, 83068), (508, 41534), (1016, 20767), (1093, 19304), (2186, 9652), (2413, 8744), (4372, 4826)]