21189453

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1877}}^1$

素因数の和:2004

約数の個数: 16

約数和(自身を含む): 29206656

約数和(自身を除く): 8017203

約数列:

[1, 3, 53, 71, 159, 213, 1877, 3763, 5631, 11289, 99481, 133267, 298443, 399801, 7063151, 21189453]

約数ペア:

[(1, 21189453), (3, 7063151), (53, 399801), (71, 298443), (159, 133267), (213, 99481), (1877, 11289), (3763, 5631)]