2190990109

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{251809}}^1$

素因数の和:251940

約数の個数: 16

約数和(自身を含む): 2755808640

約数和(自身を除く): 564818531

約数列:

[1, 7, 11, 77, 113, 791, 1243, 8701, 251809, 1762663, 2769899, 19389293, 28454417, 199180919, 312998587, 2190990109]

約数ペア:

[(1, 2190990109), (7, 312998587), (11, 199180919), (77, 28454417), (113, 19389293), (791, 2769899), (1243, 1762663), (8701, 251809)]