199943739

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{1993}}^1$

素因数の和:2227

約数の個数: 24

約数和(自身を含む): 294888672

約数和(自身を除く): 94944933

約数列:

[1, 3, 9, 71, 157, 213, 471, 639, 1413, 1993, 5979, 11147, 17937, 33441, 100323, 141503, 312901, 424509, 938703, 1273527, 2816109, 22215971, 66647913, 199943739]

約数ペア:

[(1, 199943739), (3, 66647913), (9, 22215971), (71, 2816109), (157, 1273527), (213, 938703), (471, 424509), (639, 312901), (1413, 141503), (1993, 100323), (5979, 33441), (11147, 17937)]