2051220199

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{61991}}^1$

素因数の和:62190

約数の個数: 16

約数和(自身を含む): 2440005120

約数和(自身を除く): 388784921

約数列:

[1, 7, 29, 163, 203, 1141, 4727, 33089, 61991, 433937, 1797739, 10104533, 12584173, 70731731, 293031457, 2051220199]

約数ペア:

[(1, 2051220199), (7, 293031457), (29, 70731731), (163, 12584173), (203, 10104533), (1141, 1797739), (4727, 433937), (33089, 61991)]