20862548

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 43352064

約数和(自身を除く): 22489516

約数列:

[1, 2, 4, 7, 14, 28, 47, 83, 94, 166, 188, 191, 329, 332, 382, 581, 658, 764, 1162, 1316, 1337, 2324, 2674, 3901, 5348, 7802, 8977, 15604, 15853, 17954, 27307, 31706, 35908, 54614, 62839, 63412, 109228, 110971, 125678, 221942, 251356, 443884, 745091, 1490182, 2980364, 5215637, 10431274, 20862548]

約数ペア:

[(1, 20862548), (2, 10431274), (4, 5215637), (7, 2980364), (14, 1490182), (28, 745091), (47, 443884), (83, 251356), (94, 221942), (166, 125678), (188, 110971), (191, 109228), (329, 63412), (332, 62839), (382, 54614), (581, 35908), (658, 31706), (764, 27307), (1162, 17954), (1316, 15853), (1337, 15604), (2324, 8977), (2674, 7802), (3901, 5348)]