20839221

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4567}}^1$

素因数の和:4602

約数の個数: 24

約数和(自身を含む): 33437760

約数和(自身を除く): 12598539

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4567, 13701, 41103, 59371, 123309, 178113, 534339, 771823, 1603017, 2315469, 6946407, 20839221]

約数ペア:

[(1, 20839221), (3, 6946407), (9, 2315469), (13, 1603017), (27, 771823), (39, 534339), (117, 178113), (169, 123309), (351, 59371), (507, 41103), (1521, 13701), (4563, 4567)]