20979441

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11483}}^1$

素因数の和:11525

約数の個数: 24

約数和(自身を含む): 35830080

約数和(自身を除く): 14850639

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11483, 34449, 80381, 103347, 241143, 333007, 723429, 999021, 2331049, 2997063, 6993147, 20979441]

約数ペア:

[(1, 20979441), (3, 6993147), (7, 2997063), (9, 2331049), (21, 999021), (29, 723429), (63, 333007), (87, 241143), (203, 103347), (261, 80381), (609, 34449), (1827, 11483)]