20958267

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{521}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 32472576

約数和(自身を除く): 11514309

約数列:

[1, 3, 11, 23, 33, 53, 69, 159, 253, 521, 583, 759, 1219, 1563, 1749, 3657, 5731, 11983, 13409, 17193, 27613, 35949, 40227, 82839, 131813, 303743, 395439, 635099, 911229, 1905297, 6986089, 20958267]

約数ペア:

[(1, 20958267), (3, 6986089), (11, 1905297), (23, 911229), (33, 635099), (53, 395439), (69, 303743), (159, 131813), (253, 82839), (521, 40227), (583, 35949), (759, 27613), (1219, 17193), (1563, 13409), (1749, 11983), (3657, 5731)]