21656474

素因数分解:

$2^1\times 7^1\times {\mathrm{1171}}^1\times {\mathrm{1321}}^1$

素因数の和:2501

約数の個数: 16

約数和(自身を含む): 37185216

約数和(自身を除く): 15528742

約数列:

[1, 2, 7, 14, 1171, 1321, 2342, 2642, 8197, 9247, 16394, 18494, 1546891, 3093782, 10828237, 21656474]

約数ペア:

[(1, 21656474), (2, 10828237), (7, 3093782), (14, 1546891), (1171, 18494), (1321, 16394), (2342, 9247), (2642, 8197)]