21428868

素因数分解:

$2^2\times 3^1\times {\mathrm{113}}^1\times {\mathrm{15803}}^1$

素因数の和:15923

約数の個数: 24

約数和(自身を含む): 50446368

約数和(自身を除く): 29017500

約数列:

[1, 2, 3, 4, 6, 12, 113, 226, 339, 452, 678, 1356, 15803, 31606, 47409, 63212, 94818, 189636, 1785739, 3571478, 5357217, 7142956, 10714434, 21428868]

約数ペア:

[(1, 21428868), (2, 10714434), (3, 7142956), (4, 5357217), (6, 3571478), (12, 1785739), (113, 189636), (226, 94818), (339, 63212), (452, 47409), (678, 31606), (1356, 15803)]