219664893

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{40387}}^1$

素因数の和:40441

約数の個数: 24

約数和(自身を含む): 349921632

約数和(自身を除く): 130256739

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 40387, 121161, 282709, 848127, 1494319, 1978963, 4482957, 5936889, 10460233, 31380699, 73221631, 219664893]

約数ペア:

[(1, 219664893), (3, 73221631), (7, 31380699), (21, 10460233), (37, 5936889), (49, 4482957), (111, 1978963), (147, 1494319), (259, 848127), (777, 282709), (1813, 121161), (5439, 40387)]