20701996

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15731}}^1$

素因数の和:15789

約数の個数: 24

約数和(自身を含む): 42287616

約数和(自身を除く): 21585620

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15731, 31462, 62924, 110117, 220234, 440468, 739357, 1478714, 2957428, 5175499, 10350998, 20701996]

約数ペア:

[(1, 20701996), (2, 10350998), (4, 5175499), (7, 2957428), (14, 1478714), (28, 739357), (47, 440468), (94, 220234), (188, 110117), (329, 62924), (658, 31462), (1316, 15731)]