20679654321

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{40031}}^1$

素因数の和:40131

約数の個数: 48

約数和(自身を含む): 32944734720

約数和(自身を除く): 12265080399

約数列:

[1, 3, 9, 19, 27, 53, 57, 159, 171, 361, 477, 513, 1007, 1083, 1431, 3021, 3249, 9063, 9747, 19133, 27189, 40031, 57399, 120093, 172197, 360279, 516591, 760589, 1080837, 2121643, 2281767, 6364929, 6845301, 14451191, 19094787, 20535903, 40311217, 43353573, 57284361, 120933651, 130060719, 362800953, 390182157, 765913123, 1088402859, 2297739369, 6893218107, 20679654321]

約数ペア:

[(1, 20679654321), (3, 6893218107), (9, 2297739369), (19, 1088402859), (27, 765913123), (53, 390182157), (57, 362800953), (159, 130060719), (171, 120933651), (361, 57284361), (477, 43353573), (513, 40311217), (1007, 20535903), (1083, 19094787), (1431, 14451191), (3021, 6845301), (3249, 6364929), (9063, 2281767), (9747, 2121643), (19133, 1080837), (27189, 760589), (40031, 516591), (57399, 360279), (120093, 172197)]