21958307

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4703}}^1$

素因数の和:4762

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 5136733

約数列:

[1, 7, 23, 29, 161, 203, 667, 4669, 4703, 32921, 108169, 136387, 757183, 954709, 3136901, 21958307]

約数ペア:

[(1, 21958307), (7, 3136901), (23, 954709), (29, 757183), (161, 136387), (203, 108169), (667, 32921), (4669, 4703)]