20966517

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1481}}^1$

素因数の和:1522

約数の個数: 36

約数和(自身を含む): 35873292

約数和(自身を除く): 14906775

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1481, 1573, 4443, 4719, 13329, 14157, 16291, 19253, 48873, 57759, 146619, 173277, 179201, 211783, 537603, 635349, 1612809, 1906047, 2329613, 6988839, 20966517]

約数ペア:

[(1, 20966517), (3, 6988839), (9, 2329613), (11, 1906047), (13, 1612809), (33, 635349), (39, 537603), (99, 211783), (117, 179201), (121, 173277), (143, 146619), (363, 57759), (429, 48873), (1089, 19253), (1287, 16291), (1481, 14157), (1573, 13329), (4443, 4719)]