21809414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{5477}}^1$

素因数の和:5671

約数の個数: 16

約数和(自身を含む): 35891856

約数和(自身を除く): 14082442

約数列:

[1, 2, 11, 22, 181, 362, 1991, 3982, 5477, 10954, 60247, 120494, 991337, 1982674, 10904707, 21809414]

約数ペア:

[(1, 21809414), (2, 10904707), (11, 1982674), (22, 991337), (181, 120494), (362, 60247), (1991, 10954), (3982, 5477)]