21299018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{19051}}^1$

素因数の和:19109

約数の個数: 16

約数和(自身を含む): 35208096

約数和(自身を除く): 13909078

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 19051, 38102, 247663, 495326, 819193, 1638386, 10649509, 21299018]

約数ペア:

[(1, 21299018), (2, 10649509), (13, 1638386), (26, 819193), (43, 495326), (86, 247663), (559, 38102), (1118, 19051)]