25651521

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{557}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 45961344

約数和(自身を除く): 20309823

約数列:

[1, 3, 7, 9, 17, 21, 43, 51, 63, 119, 129, 153, 301, 357, 387, 557, 731, 903, 1071, 1671, 2193, 2709, 3899, 5013, 5117, 6579, 9469, 11697, 15351, 23951, 28407, 35091, 46053, 66283, 71853, 85221, 167657, 198849, 215559, 407167, 502971, 596547, 1221501, 1508913, 2850169, 3664503, 8550507, 25651521]

約数ペア:

[(1, 25651521), (3, 8550507), (7, 3664503), (9, 2850169), (17, 1508913), (21, 1221501), (43, 596547), (51, 502971), (63, 407167), (119, 215559), (129, 198849), (153, 167657), (301, 85221), (357, 71853), (387, 66283), (557, 46053), (731, 35091), (903, 28407), (1071, 23951), (1671, 15351), (2193, 11697), (2709, 9469), (3899, 6579), (5013, 5117)]