21613690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2357}}^1$

素因数の和:2502

約数の個数: 32

約数和(自身を含む): 44820864

約数和(自身を除く): 23207174

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 655, 917, 1310, 1834, 2357, 4585, 4714, 9170, 11785, 16499, 23570, 32998, 82495, 164990, 308767, 617534, 1543835, 2161369, 3087670, 4322738, 10806845, 21613690]

約数ペア:

[(1, 21613690), (2, 10806845), (5, 4322738), (7, 3087670), (10, 2161369), (14, 1543835), (35, 617534), (70, 308767), (131, 164990), (262, 82495), (655, 32998), (917, 23570), (1310, 16499), (1834, 11785), (2357, 9170), (4585, 4714)]