21672783

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{1223}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 34369920

約数和(自身を除く): 12697137

約数列:

[1, 3, 9, 11, 33, 99, 179, 537, 1223, 1611, 1969, 3669, 5907, 11007, 13453, 17721, 40359, 121077, 218917, 656751, 1970253, 2408087, 7224261, 21672783]

約数ペア:

[(1, 21672783), (3, 7224261), (9, 2408087), (11, 1970253), (33, 656751), (99, 218917), (179, 121077), (537, 40359), (1223, 17721), (1611, 13453), (1969, 11007), (3669, 5907)]