85781913

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1783}}^1$

素因数の和:1901

約数の個数: 32

約数和(自身を含む): 137011200

約数和(自身を除く): 51229287

約数列:

[1, 3, 7, 21, 29, 79, 87, 203, 237, 553, 609, 1659, 1783, 2291, 5349, 6873, 12481, 16037, 37443, 48111, 51707, 140857, 155121, 361949, 422571, 985999, 1085847, 2957997, 4084853, 12254559, 28593971, 85781913]

約数ペア:

[(1, 85781913), (3, 28593971), (7, 12254559), (21, 4084853), (29, 2957997), (79, 1085847), (87, 985999), (203, 422571), (237, 361949), (553, 155121), (609, 140857), (1659, 51707), (1783, 48111), (2291, 37443), (5349, 16037), (6873, 12481)]