21611766

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{619}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 49371840

約数和(自身を除く): 27760074

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 529, 619, 759, 1058, 1238, 1518, 1587, 1857, 3174, 3714, 5819, 6809, 11638, 13618, 14237, 17457, 20427, 28474, 34914, 40854, 42711, 85422, 156607, 313214, 327451, 469821, 654902, 939642, 982353, 1964706, 3601961, 7203922, 10805883, 21611766]

約数ペア:

[(1, 21611766), (2, 10805883), (3, 7203922), (6, 3601961), (11, 1964706), (22, 982353), (23, 939642), (33, 654902), (46, 469821), (66, 327451), (69, 313214), (138, 156607), (253, 85422), (506, 42711), (529, 40854), (619, 34914), (759, 28474), (1058, 20427), (1238, 17457), (1518, 14237), (1587, 13618), (1857, 11638), (3174, 6809), (3714, 5819)]