131921279

素因数分解:

$7^2\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 157046400

約数和(自身を除く): 25125121

約数列:

[1, 7, 49, 83, 163, 199, 581, 1141, 1393, 4067, 7987, 9751, 13529, 16517, 32437, 94703, 115619, 227059, 662921, 809333, 1589413, 2692271, 18845897, 131921279]

約数ペア:

[(1, 131921279), (7, 18845897), (49, 2692271), (83, 1589413), (163, 809333), (199, 662921), (581, 227059), (1141, 115619), (1393, 94703), (4067, 32437), (7987, 16517), (9751, 13529)]