21490558

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{601}}^1\times {\mathrm{941}}^1$

素因数の和:1563

約数の個数: 16

約数和(自身を含む): 34025040

約数和(自身を除く): 12534482

約数列:

[1, 2, 19, 38, 601, 941, 1202, 1882, 11419, 17879, 22838, 35758, 565541, 1131082, 10745279, 21490558]

約数ペア:

[(1, 21490558), (2, 10745279), (19, 1131082), (38, 565541), (601, 35758), (941, 22838), (1202, 17879), (1882, 11419)]