206517615

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{19753}}^1$

素因数の和:19819

約数の個数: 32

約数和(自身を含む): 358416576

約数和(自身を除く): 151898961

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 2091, 3485, 10455, 19753, 59259, 98765, 296295, 335801, 809873, 1007403, 1679005, 2429619, 4049365, 5037015, 12148095, 13767841, 41303523, 68839205, 206517615]

約数ペア:

[(1, 206517615), (3, 68839205), (5, 41303523), (15, 13767841), (17, 12148095), (41, 5037015), (51, 4049365), (85, 2429619), (123, 1679005), (205, 1007403), (255, 809873), (615, 335801), (697, 296295), (2091, 98765), (3485, 59259), (10455, 19753)]