218980294

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{20101}}^1$

素因数の和:20535

約数の個数: 16

約数和(自身を含む): 354599280

約数和(自身を除く): 135618986

約数列:

[1, 2, 13, 26, 419, 838, 5447, 10894, 20101, 40202, 261313, 522626, 8422319, 16844638, 109490147, 218980294]

約数ペア:

[(1, 218980294), (2, 109490147), (13, 16844638), (26, 8422319), (419, 522626), (838, 261313), (5447, 40202), (10894, 20101)]