1388892141

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1695839}}^1$

素因数の和:1695865

約数の個数: 24

約数和(自身を含む): 2469143040

約数和(自身を除く): 1080250899

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 1695839, 5087517, 11870873, 15262551, 22045907, 35612619, 66137721, 106837857, 154321349, 198413163, 462964047, 1388892141]

約数ペア:

[(1, 1388892141), (3, 462964047), (7, 198413163), (9, 154321349), (13, 106837857), (21, 66137721), (39, 35612619), (63, 22045907), (91, 15262551), (117, 11870873), (273, 5087517), (819, 1695839)]