20157921147

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73838539}}^1$

素因数の和:73838562

約数の個数: 16

約数和(自身を含む): 33079665920

約数和(自身を除く): 12921744773

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 73838539, 221515617, 516869773, 959901007, 1550609319, 2879703021, 6719307049, 20157921147]

約数ペア:

[(1, 20157921147), (3, 6719307049), (7, 2879703021), (13, 1550609319), (21, 959901007), (39, 516869773), (91, 221515617), (273, 73838539)]