19681618

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{167}}^1\times {\mathrm{487}}^1$

素因数の和:678

約数の個数: 24

約数和(自身を含む): 32711616

約数和(自身を除く): 13029998

約数列:

[1, 2, 11, 22, 121, 167, 242, 334, 487, 974, 1837, 3674, 5357, 10714, 20207, 40414, 58927, 81329, 117854, 162658, 894619, 1789238, 9840809, 19681618]

約数ペア:

[(1, 19681618), (2, 9840809), (11, 1789238), (22, 894619), (121, 162658), (167, 117854), (242, 81329), (334, 58927), (487, 40414), (974, 20207), (1837, 10714), (3674, 5357)]