20619874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{2473}}^1$

素因数の和:2865

約数の個数: 16

約数和(自身を含む): 33844320

約数和(自身を除く): 13224446

約数列:

[1, 2, 11, 22, 379, 758, 2473, 4169, 4946, 8338, 27203, 54406, 937267, 1874534, 10309937, 20619874]

約数ペア:

[(1, 20619874), (2, 10309937), (11, 1874534), (22, 937267), (379, 54406), (758, 27203), (2473, 8338), (4169, 4946)]