215257887

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{16879}}^1$

素因数の和:17007

約数の個数: 24

約数和(自身を含む): 337937600

約数和(自身を除く): 122679713

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1417, 4251, 12753, 16879, 50637, 151911, 219427, 658281, 1839811, 1974843, 5519433, 16558299, 23917543, 71752629, 215257887]

約数ペア:

[(1, 215257887), (3, 71752629), (9, 23917543), (13, 16558299), (39, 5519433), (109, 1974843), (117, 1839811), (327, 658281), (981, 219427), (1417, 151911), (4251, 50637), (12753, 16879)]