21163934

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2473}}^1$

素因数の和:2875

約数の個数: 16

約数和(自身を含む): 34734960

約数和(自身を除く): 13571026

約数列:

[1, 2, 11, 22, 389, 778, 2473, 4279, 4946, 8558, 27203, 54406, 961997, 1923994, 10581967, 21163934]

約数ペア:

[(1, 21163934), (2, 10581967), (11, 1923994), (22, 961997), (389, 54406), (778, 27203), (2473, 8558), (4279, 4946)]