19872685

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{2797}}^1$

素因数の和:2845

約数の個数: 24

約数和(自身を含む): 28707480

約数和(自身を除く): 8834795

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 2797, 7105, 13985, 19579, 81113, 97895, 137053, 405565, 567791, 685265, 2838955, 3974537, 19872685]

約数ペア:

[(1, 19872685), (5, 3974537), (7, 2838955), (29, 685265), (35, 567791), (49, 405565), (145, 137053), (203, 97895), (245, 81113), (1015, 19579), (1421, 13985), (2797, 7105)]