21963956

素因数分解:

$2^2\times 7^2\times {\mathrm{112061}}^1$

素因数の和:112079

約数の個数: 18

約数和(自身を含む): 44712738

約数和(自身を除く): 22748782

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 112061, 224122, 448244, 784427, 1568854, 3137708, 5490989, 10981978, 21963956]

約数ペア:

[(1, 21963956), (2, 10981978), (4, 5490989), (7, 3137708), (14, 1568854), (28, 784427), (49, 448244), (98, 224122), (196, 112061)]