208977993

素因数分解:

$3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{8941}}^1$

素因数の和:9014

約数の個数: 36

約数和(自身を含む): 357805188

約数和(自身を除く): 148827195

約数列:

[1, 3, 7, 9, 21, 49, 53, 63, 147, 159, 371, 441, 477, 1113, 2597, 3339, 7791, 8941, 23373, 26823, 62587, 80469, 187761, 438109, 473873, 563283, 1314327, 1421619, 3317111, 3942981, 4264857, 9951333, 23219777, 29853999, 69659331, 208977993]

約数ペア:

[(1, 208977993), (3, 69659331), (7, 29853999), (9, 23219777), (21, 9951333), (49, 4264857), (53, 3942981), (63, 3317111), (147, 1421619), (159, 1314327), (371, 563283), (441, 473873), (477, 438109), (1113, 187761), (2597, 80469), (3339, 62587), (7791, 26823), (8941, 23373)]