201772521

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 309041460

約数和(自身を除く): 107268939

約数列:

[1, 3, 9, 31, 41, 93, 123, 279, 369, 569, 961, 1271, 1707, 2883, 3813, 5121, 8649, 11439, 17639, 23329, 39401, 52917, 69987, 118203, 158751, 209961, 354609, 546809, 723199, 1640427, 2169597, 4921281, 6508791, 22419169, 67257507, 201772521]

約数ペア:

[(1, 201772521), (3, 67257507), (9, 22419169), (31, 6508791), (41, 4921281), (93, 2169597), (123, 1640427), (279, 723199), (369, 546809), (569, 354609), (961, 209961), (1271, 158751), (1707, 118203), (2883, 69987), (3813, 52917), (5121, 39401), (8649, 23329), (11439, 17639)]