20647396

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 46126080

約数和(自身を除く): 25478684

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1559, 1892, 3118, 3311, 6236, 6622, 10913, 13244, 17149, 21826, 34298, 43652, 67037, 68596, 120043, 134074, 240086, 268148, 469259, 480172, 737407, 938518, 1474814, 1877036, 2949628, 5161849, 10323698, 20647396]

約数ペア:

[(1, 20647396), (2, 10323698), (4, 5161849), (7, 2949628), (11, 1877036), (14, 1474814), (22, 938518), (28, 737407), (43, 480172), (44, 469259), (77, 268148), (86, 240086), (154, 134074), (172, 120043), (301, 68596), (308, 67037), (473, 43652), (602, 34298), (946, 21826), (1204, 17149), (1559, 13244), (1892, 10913), (3118, 6622), (3311, 6236)]