19659860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89363}}^1$

素因数の和:89383

約数の個数: 24

約数和(自身を含む): 45039456

約数和(自身を除く): 25379596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89363, 178726, 357452, 446815, 893630, 982993, 1787260, 1965986, 3931972, 4914965, 9829930, 19659860]

約数ペア:

[(1, 19659860), (2, 9829930), (4, 4914965), (5, 3931972), (10, 1965986), (11, 1787260), (20, 982993), (22, 893630), (44, 446815), (55, 357452), (110, 178726), (220, 89363)]