21977206

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{401}}^1\times {\mathrm{409}}^1$

素因数の和:879

約数の個数: 16

約数和(自身を含む): 33623280

約数和(自身を除く): 11646074

約数列:

[1, 2, 67, 134, 401, 409, 802, 818, 26867, 27403, 53734, 54806, 164009, 328018, 10988603, 21977206]

約数ペア:

[(1, 21977206), (2, 10988603), (67, 328018), (134, 164009), (401, 54806), (409, 53734), (802, 27403), (818, 26867)]