16918990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4157}}^1$

素因数の和:4212

約数の個数: 32

約数和(自身を含む): 34128864

約数和(自身を除く): 17209874

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 4157, 8314, 20785, 41570, 45727, 91454, 153809, 228635, 307618, 457270, 769045, 1538090, 1691899, 3383798, 8459495, 16918990]

約数ペア:

[(1, 16918990), (2, 8459495), (5, 3383798), (10, 1691899), (11, 1538090), (22, 769045), (37, 457270), (55, 307618), (74, 228635), (110, 153809), (185, 91454), (370, 45727), (407, 41570), (814, 20785), (2035, 8314), (4070, 4157)]