20181870405

素因数分解:

$3^2\times 5^1\times {\mathrm{3181}}^1\times {\mathrm{140989}}^1$

素因数の和:144181

約数の個数: 24

約数和(自身を含む): 34993154040

約数和(自身を除く): 14811283635

約数列:

[1, 3, 5, 9, 15, 45, 3181, 9543, 15905, 28629, 47715, 140989, 143145, 422967, 704945, 1268901, 2114835, 6344505, 448486009, 1345458027, 2242430045, 4036374081, 6727290135, 20181870405]

約数ペア:

[(1, 20181870405), (3, 6727290135), (5, 4036374081), (9, 2242430045), (15, 1345458027), (45, 448486009), (3181, 6344505), (9543, 2114835), (15905, 1268901), (28629, 704945), (47715, 422967), (140989, 143145)]