21042422

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1\times {\mathrm{421}}^1$

素因数の和:863

約数の個数: 16

約数和(自身を含む): 32196912

約数和(自身を除く): 11154490

約数列:

[1, 2, 67, 134, 373, 421, 746, 842, 24991, 28207, 49982, 56414, 157033, 314066, 10521211, 21042422]

約数ペア:

[(1, 21042422), (2, 10521211), (67, 314066), (134, 157033), (373, 56414), (421, 49982), (746, 28207), (842, 24991)]