209947731

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{5749}}^1$

素因数の和:5843

約数の個数: 32

約数和(自身を含む): 335616000

約数和(自身を除く): 125668269

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 777, 987, 1739, 5217, 5749, 12173, 17247, 36519, 40243, 120729, 212713, 270203, 638139, 810609, 1488991, 1891421, 4466973, 5674263, 9997511, 29992533, 69982577, 209947731]

約数ペア:

[(1, 209947731), (3, 69982577), (7, 29992533), (21, 9997511), (37, 5674263), (47, 4466973), (111, 1891421), (141, 1488991), (259, 810609), (329, 638139), (777, 270203), (987, 212713), (1739, 120729), (5217, 40243), (5749, 36519), (12173, 17247)]