21844340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{463}}^1$

素因数の和:816

約数の個数: 48

約数和(自身を含む): 52695552

約数和(自身を除く): 30851212

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 337, 463, 674, 926, 1348, 1685, 1852, 2315, 2359, 3241, 3370, 4630, 4718, 6482, 6740, 9260, 9436, 11795, 12964, 16205, 23590, 32410, 47180, 64820, 156031, 312062, 624124, 780155, 1092217, 1560310, 2184434, 3120620, 4368868, 5461085, 10922170, 21844340]

約数ペア:

[(1, 21844340), (2, 10922170), (4, 5461085), (5, 4368868), (7, 3120620), (10, 2184434), (14, 1560310), (20, 1092217), (28, 780155), (35, 624124), (70, 312062), (140, 156031), (337, 64820), (463, 47180), (674, 32410), (926, 23590), (1348, 16205), (1685, 12964), (1852, 11795), (2315, 9436), (2359, 9260), (3241, 6740), (3370, 6482), (4630, 4718)]