21120341

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2131}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 24867648

約数和(自身を除く): 3747307

約数列:

[1, 11, 17, 53, 187, 583, 901, 2131, 9911, 23441, 36227, 112943, 398497, 1242373, 1920031, 21120341]

約数ペア:

[(1, 21120341), (11, 1920031), (17, 1242373), (53, 398497), (187, 112943), (583, 36227), (901, 23441), (2131, 9911)]