21226672

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19801}}^1$

素因数の和:19876

約数の個数: 20

約数和(自身を含む): 41742616

約数和(自身を除く): 20515944

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19801, 39602, 79204, 158408, 316816, 1326667, 2653334, 5306668, 10613336, 21226672]

約数ペア:

[(1, 21226672), (2, 10613336), (4, 5306668), (8, 2653334), (16, 1326667), (67, 316816), (134, 158408), (268, 79204), (536, 39602), (1072, 19801)]