20891676

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{853}}^1$

素因数の和:1030

約数の個数: 48

約数和(自身を含む): 52893344

約数和(自身を除く): 32001668

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 157, 314, 471, 628, 853, 942, 1706, 1884, 2041, 2559, 3412, 4082, 5118, 6123, 8164, 10236, 11089, 12246, 22178, 24492, 33267, 44356, 66534, 133068, 133921, 267842, 401763, 535684, 803526, 1607052, 1740973, 3481946, 5222919, 6963892, 10445838, 20891676]

約数ペア:

[(1, 20891676), (2, 10445838), (3, 6963892), (4, 5222919), (6, 3481946), (12, 1740973), (13, 1607052), (26, 803526), (39, 535684), (52, 401763), (78, 267842), (156, 133921), (157, 133068), (314, 66534), (471, 44356), (628, 33267), (853, 24492), (942, 22178), (1706, 12246), (1884, 11089), (2041, 10236), (2559, 8164), (3412, 6123), (4082, 5118)]