61520921

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{727}}^1$

素因数の和:909

約数の個数: 24

約数和(自身を含む): 78676416

約数和(自身を除く): 17155495

約数列:

[1, 7, 11, 49, 77, 157, 539, 727, 1099, 1727, 5089, 7693, 7997, 12089, 35623, 55979, 84623, 114139, 391853, 798973, 1255529, 5592811, 8788703, 61520921]

約数ペア:

[(1, 61520921), (7, 8788703), (11, 5592811), (49, 1255529), (77, 798973), (157, 391853), (539, 114139), (727, 84623), (1099, 55979), (1727, 35623), (5089, 12089), (7693, 7997)]