21035469

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2657}}^1$

素因数の和:2709

約数の個数: 32

約数和(自身を含む): 35723520

約数和(自身を除く): 14688051

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2639, 2657, 7917, 7971, 18599, 34541, 55797, 77053, 103623, 231159, 241787, 539371, 725361, 1001689, 1618113, 3005067, 7011823, 21035469]

約数ペア:

[(1, 21035469), (3, 7011823), (7, 3005067), (13, 1618113), (21, 1001689), (29, 725361), (39, 539371), (87, 241787), (91, 231159), (203, 103623), (273, 77053), (377, 55797), (609, 34541), (1131, 18599), (2639, 7971), (2657, 7917)]