399309791

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{5171}}^1$

素因数の和:5302

約数の個数: 16

約数和(自身を含む): 428986368

約数和(自身を除く): 29676577

約数列:

[1, 31, 47, 53, 1457, 1643, 2491, 5171, 77221, 160301, 243037, 274063, 7534147, 8495953, 12880961, 399309791]

約数ペア:

[(1, 399309791), (31, 12880961), (47, 8495953), (53, 7534147), (1457, 274063), (1643, 243037), (2491, 160301), (5171, 77221)]