21996208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105751}}^1$

素因数の和:105772

約数の個数: 20

約数和(自身を含む): 45896368

約数和(自身を除く): 23900160

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105751, 211502, 423004, 846008, 1374763, 1692016, 2749526, 5499052, 10998104, 21996208]

約数ペア:

[(1, 21996208), (2, 10998104), (4, 5499052), (8, 2749526), (13, 1692016), (16, 1374763), (26, 846008), (52, 423004), (104, 211502), (208, 105751)]