20496476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5119}}^1$

素因数の和:5154

約数の個数: 48

約数和(自身を含む): 48168960

約数和(自身を除く): 27672484

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5119, 10238, 20476, 35833, 56309, 66547, 71666, 112618, 133094, 143332, 225236, 266188, 394163, 465829, 732017, 788326, 931658, 1464034, 1576652, 1863316, 2928068, 5124119, 10248238, 20496476]

約数ペア:

[(1, 20496476), (2, 10248238), (4, 5124119), (7, 2928068), (11, 1863316), (13, 1576652), (14, 1464034), (22, 931658), (26, 788326), (28, 732017), (44, 465829), (52, 394163), (77, 266188), (91, 225236), (143, 143332), (154, 133094), (182, 112618), (286, 71666), (308, 66547), (364, 56309), (572, 35833), (1001, 20476), (2002, 10238), (4004, 5119)]