20990122

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{2293}}^1$

素因数の和:2517

約数の個数: 16

約数和(自身を含む): 33033600

約数和(自身を除く): 12043478

約数列:

[1, 2, 23, 46, 199, 398, 2293, 4577, 4586, 9154, 52739, 105478, 456307, 912614, 10495061, 20990122]

約数ペア:

[(1, 20990122), (2, 10495061), (23, 912614), (46, 456307), (199, 105478), (398, 52739), (2293, 9154), (4577, 4586)]