21671569353

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1\times {\mathrm{20347}}^1$

素因数の和:21181

約数の個数: 32

約数和(自身を含む): 33562153984

約数和(自身を除く): 11890584631

約数列:

[1, 3, 7, 21, 67, 201, 469, 757, 1407, 2271, 5299, 15897, 20347, 50719, 61041, 142429, 152157, 355033, 427287, 1065099, 1363249, 4089747, 9542743, 15402679, 28628229, 46208037, 107818753, 323456259, 1031979493, 3095938479, 7223856451, 21671569353]

約数ペア:

[(1, 21671569353), (3, 7223856451), (7, 3095938479), (21, 1031979493), (67, 323456259), (201, 107818753), (469, 46208037), (757, 28628229), (1407, 15402679), (2271, 9542743), (5299, 4089747), (15897, 1363249), (20347, 1065099), (50719, 427287), (61041, 355033), (142429, 152157)]