64121421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{673}}^1$

素因数の和:1045

約数の個数: 32

約数和(自身を含む): 105683200

約数和(自身を除く): 41561779

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 349, 673, 1047, 2019, 2443, 4537, 4711, 7329, 8749, 13611, 14133, 26247, 31759, 61243, 95277, 183729, 234877, 704631, 1644139, 3053401, 4932417, 9160203, 21373807, 64121421]

約数ペア:

[(1, 64121421), (3, 21373807), (7, 9160203), (13, 4932417), (21, 3053401), (39, 1644139), (91, 704631), (273, 234877), (349, 183729), (673, 95277), (1047, 61243), (2019, 31759), (2443, 26247), (4537, 14133), (4711, 13611), (7329, 8749)]