21678318

素因数分解:

$2^1\times 3^2\times {\mathrm{487}}^1\times {\mathrm{2473}}^1$

素因数の和:2968

約数の個数: 24

約数和(自身を含む): 47085168

約数和(自身を除く): 25406850

約数列:

[1, 2, 3, 6, 9, 18, 487, 974, 1461, 2473, 2922, 4383, 4946, 7419, 8766, 14838, 22257, 44514, 1204351, 2408702, 3613053, 7226106, 10839159, 21678318]

約数ペア:

[(1, 21678318), (2, 10839159), (3, 7226106), (6, 3613053), (9, 2408702), (18, 1204351), (487, 44514), (974, 22257), (1461, 14838), (2473, 8766), (2922, 7419), (4383, 4946)]