21981174

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{51599}}^1$

素因数の和:51675

約数の個数: 16

約数和(自身を含む): 44582400

約数和(自身を除く): 22601226

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 51599, 103198, 154797, 309594, 3663529, 7327058, 10990587, 21981174]

約数ペア:

[(1, 21981174), (2, 10990587), (3, 7327058), (6, 3663529), (71, 309594), (142, 154797), (213, 103198), (426, 51599)]