21041792

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{3823}}^1$

素因数の和:3880

約数の個数: 32

約数和(自身を含む): 42905280

約数和(自身を除く): 21863488

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 688, 1376, 2752, 3823, 5504, 7646, 15292, 30584, 61168, 122336, 164389, 244672, 328778, 489344, 657556, 1315112, 2630224, 5260448, 10520896, 21041792]

約数ペア:

[(1, 21041792), (2, 10520896), (4, 5260448), (8, 2630224), (16, 1315112), (32, 657556), (43, 489344), (64, 328778), (86, 244672), (128, 164389), (172, 122336), (344, 61168), (688, 30584), (1376, 15292), (2752, 7646), (3823, 5504)]