21494672

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{20051}}^1$

素因数の和:20126

約数の個数: 20

約数和(自身を含む): 42269616

約数和(自身を除く): 20774944

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 20051, 40102, 80204, 160408, 320816, 1343417, 2686834, 5373668, 10747336, 21494672]

約数ペア:

[(1, 21494672), (2, 10747336), (4, 5373668), (8, 2686834), (16, 1343417), (67, 320816), (134, 160408), (268, 80204), (536, 40102), (1072, 20051)]