16981690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{487}}^1$

素因数の和:822

約数の個数: 32

約数和(自身を含む): 33519744

約数和(自身を除く): 16538054

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 317, 487, 634, 974, 1585, 2435, 3170, 3487, 4870, 5357, 6974, 10714, 17435, 26785, 34870, 53570, 154379, 308758, 771895, 1543790, 1698169, 3396338, 8490845, 16981690]

約数ペア:

[(1, 16981690), (2, 8490845), (5, 3396338), (10, 1698169), (11, 1543790), (22, 771895), (55, 308758), (110, 154379), (317, 53570), (487, 34870), (634, 26785), (974, 17435), (1585, 10714), (2435, 6974), (3170, 5357), (3487, 4870)]