21124299

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{877}}^1$

素因数の和:955

約数の個数: 32

約数和(自身を含む): 34164736

約数和(自身を除く): 13040437

約数列:

[1, 3, 7, 21, 31, 37, 93, 111, 217, 259, 651, 777, 877, 1147, 2631, 3441, 6139, 8029, 18417, 24087, 27187, 32449, 81561, 97347, 190309, 227143, 570927, 681429, 1005919, 3017757, 7041433, 21124299]

約数ペア:

[(1, 21124299), (3, 7041433), (7, 3017757), (21, 1005919), (31, 681429), (37, 570927), (93, 227143), (111, 190309), (217, 97347), (259, 81561), (651, 32449), (777, 27187), (877, 24087), (1147, 18417), (2631, 8029), (3441, 6139)]