639247

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:150

約数の個数: 16

約数和(自身を含む): 783360

約数和(自身を除く): 144113

約数列:

[1, 7, 29, 47, 67, 203, 329, 469, 1363, 1943, 3149, 9541, 13601, 22043, 91321, 639247]

約数ペア:

[(1, 639247), (7, 91321), (29, 22043), (47, 13601), (67, 9541), (203, 3149), (329, 1943), (469, 1363)]