64997569

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 84115584

約数和(自身を除く): 19118015

約数列:

[1, 7, 13, 47, 49, 91, 167, 169, 329, 611, 637, 1169, 1183, 2171, 2303, 4277, 7849, 7943, 8183, 8281, 15197, 28223, 29939, 54943, 55601, 102037, 106379, 197561, 384601, 389207, 714259, 1326481, 1382927, 4999813, 9285367, 64997569]

約数ペア:

[(1, 64997569), (7, 9285367), (13, 4999813), (47, 1382927), (49, 1326481), (91, 714259), (167, 389207), (169, 384601), (329, 197561), (611, 106379), (637, 102037), (1169, 55601), (1183, 54943), (2171, 29939), (2303, 28223), (4277, 15197), (7849, 8281), (7943, 8183)]