16781259

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 25482240

約数和(自身を除く): 8700981

約数列:

[1, 3, 11, 33, 41, 79, 123, 157, 237, 451, 471, 869, 1353, 1727, 2607, 3239, 5181, 6437, 9717, 12403, 19311, 35629, 37209, 70807, 106887, 136433, 212421, 409299, 508523, 1525569, 5593753, 16781259]

約数ペア:

[(1, 16781259), (3, 5593753), (11, 1525569), (33, 508523), (41, 409299), (79, 212421), (123, 136433), (157, 106887), (237, 70807), (451, 37209), (471, 35629), (869, 19311), (1353, 12403), (1727, 9717), (2607, 6437), (3239, 5181)]