138400520041

素因数分解:

$7^2\times {\mathrm{31231}}^1\times {\mathrm{90439}}^1$

素因数の和:121684

約数の個数: 12

約数和(自身を含む): 161003458560

約数和(自身を除く): 22602938519

約数列:

[1, 7, 49, 31231, 90439, 218617, 633073, 1530319, 4431511, 2824500409, 19771502863, 138400520041]

約数ペア:

[(1, 138400520041), (7, 19771502863), (49, 2824500409), (31231, 4431511), (90439, 1530319), (218617, 633073)]