289421209

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{221101}}^1$

素因数の和:221136

約数の個数: 16

約数和(自身を含む): 382064256

約数和(自身を除く): 92643047

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 221101, 1547707, 2432111, 3758717, 17024777, 26311019, 41345887, 289421209]

約数ペア:

[(1, 289421209), (7, 41345887), (11, 26311019), (17, 17024777), (77, 3758717), (119, 2432111), (187, 1547707), (1309, 221101)]