681259201

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{347}}^1\times {\mathrm{389}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 804548160

約数和(自身を除く): 123288959

約数列:

[1, 7, 49, 103, 347, 389, 721, 2429, 2723, 5047, 17003, 19061, 35741, 40067, 134983, 250187, 280469, 944881, 1751309, 1963283, 6614167, 13903249, 97322743, 681259201]

約数ペア:

[(1, 681259201), (7, 97322743), (49, 13903249), (103, 6614167), (347, 1963283), (389, 1751309), (721, 944881), (2429, 280469), (2723, 250187), (5047, 134983), (17003, 40067), (19061, 35741)]