20782516

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{691}}^1$

素因数の和:871

約数の個数: 24

約数和(自身を含む): 37279424

約数和(自身を除く): 16496908

約数列:

[1, 2, 4, 73, 103, 146, 206, 292, 412, 691, 1382, 2764, 7519, 15038, 30076, 50443, 71173, 100886, 142346, 201772, 284692, 5195629, 10391258, 20782516]

約数ペア:

[(1, 20782516), (2, 10391258), (4, 5195629), (73, 284692), (103, 201772), (146, 142346), (206, 100886), (292, 71173), (412, 50443), (691, 30076), (1382, 15038), (2764, 7519)]