20709346

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{331}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 36812160

約数和(自身を除く): 16102814

約数列:

[1, 2, 7, 14, 41, 82, 109, 218, 287, 331, 574, 662, 763, 1526, 2317, 4469, 4634, 8938, 13571, 27142, 31283, 36079, 62566, 72158, 94997, 189994, 252553, 505106, 1479239, 2958478, 10354673, 20709346]

約数ペア:

[(1, 20709346), (2, 10354673), (7, 2958478), (14, 1479239), (41, 505106), (82, 252553), (109, 189994), (218, 94997), (287, 72158), (331, 62566), (574, 36079), (662, 31283), (763, 27142), (1526, 13571), (2317, 8938), (4469, 4634)]