639642913

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{4759}}^1$

素因数の和:4997

約数の個数: 24

約数和(自身を含む): 805277760

約数和(自身を除く): 165634847

約数列:

[1, 7, 13, 49, 91, 211, 637, 1477, 2743, 4759, 10339, 19201, 33313, 61867, 134407, 233191, 433069, 1004149, 3031483, 7029043, 13053937, 49203301, 91377559, 639642913]

約数ペア:

[(1, 639642913), (7, 91377559), (13, 49203301), (49, 13053937), (91, 7029043), (211, 3031483), (637, 1004149), (1477, 433069), (2743, 233191), (4759, 134407), (10339, 61867), (19201, 33313)]