20654866

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{4217}}^1$

素因数の和:4329

約数の個数: 16

約数和(自身を含む): 32394240

約数和(自身を除く): 11739374

約数列:

[1, 2, 31, 62, 79, 158, 2449, 4217, 4898, 8434, 130727, 261454, 333143, 666286, 10327433, 20654866]

約数ペア:

[(1, 20654866), (2, 10327433), (31, 666286), (62, 333143), (79, 261454), (158, 130727), (2449, 8434), (4217, 4898)]