217519713

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{233}}^1\times {\mathrm{2207}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 322403328

約数和(自身を除く): 104883615

約数列:

[1, 3, 9, 47, 141, 233, 423, 699, 2097, 2207, 6621, 10951, 19863, 32853, 98559, 103729, 311187, 514231, 933561, 1542693, 4628079, 24168857, 72506571, 217519713]

約数ペア:

[(1, 217519713), (3, 72506571), (9, 24168857), (47, 4628079), (141, 1542693), (233, 933561), (423, 514231), (699, 311187), (2097, 103729), (2207, 98559), (6621, 32853), (10951, 19863)]