208088937

素因数分解:

$3^2\times 7^2\times {\mathrm{389}}^1\times {\mathrm{1213}}^1$

素因数の和:1622

約数の個数: 36

約数和(自身を含む): 350833860

約数和(自身を除く): 142744923

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 389, 441, 1167, 1213, 2723, 3501, 3639, 8169, 8491, 10917, 19061, 24507, 25473, 57183, 59437, 76419, 171549, 178311, 471857, 534933, 1415571, 3302999, 4246713, 9908997, 23120993, 29726991, 69362979, 208088937]

約数ペア:

[(1, 208088937), (3, 69362979), (7, 29726991), (9, 23120993), (21, 9908997), (49, 4246713), (63, 3302999), (147, 1415571), (389, 534933), (441, 471857), (1167, 178311), (1213, 171549), (2723, 76419), (3501, 59437), (3639, 57183), (8169, 25473), (8491, 24507), (10917, 19061)]