21985474

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{42443}}^1$

素因数の和:42489

約数の個数: 16

約数和(自身を含む): 38708928

約数和(自身を除く): 16723454

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 42443, 84886, 297101, 594202, 1570391, 3140782, 10992737, 21985474]

約数ペア:

[(1, 21985474), (2, 10992737), (7, 3140782), (14, 1570391), (37, 594202), (74, 297101), (259, 84886), (518, 42443)]