21658630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1117}}^1$

素因数の和:1408

約数の個数: 32

約数和(自身を含む): 44755776

約数和(自身を除く): 23097146

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 277, 554, 1117, 1385, 1939, 2234, 2770, 3878, 5585, 7819, 9695, 11170, 15638, 19390, 39095, 78190, 309409, 618818, 1547045, 2165863, 3094090, 4331726, 10829315, 21658630]

約数ペア:

[(1, 21658630), (2, 10829315), (5, 4331726), (7, 3094090), (10, 2165863), (14, 1547045), (35, 618818), (70, 309409), (277, 78190), (554, 39095), (1117, 19390), (1385, 15638), (1939, 11170), (2234, 9695), (2770, 7819), (3878, 5585)]