13256243

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 64

約数和(自身を含む): 20321280

約数和(自身を除く): 7065037

約数列:

[1, 7, 11, 13, 17, 19, 41, 77, 91, 119, 133, 143, 187, 209, 221, 247, 287, 323, 451, 533, 697, 779, 1001, 1309, 1463, 1547, 1729, 2261, 2431, 2717, 3157, 3553, 3731, 4199, 4879, 5453, 5863, 7667, 8569, 9061, 10127, 13243, 17017, 19019, 24871, 29393, 41041, 46189, 53669, 59983, 63427, 70889, 92701, 99671, 111397, 145673, 172159, 323323, 697697, 779779, 1019711, 1205113, 1893749, 13256243]

約数ペア:

[(1, 13256243), (7, 1893749), (11, 1205113), (13, 1019711), (17, 779779), (19, 697697), (41, 323323), (77, 172159), (91, 145673), (119, 111397), (133, 99671), (143, 92701), (187, 70889), (209, 63427), (221, 59983), (247, 53669), (287, 46189), (323, 41041), (451, 29393), (533, 24871), (697, 19019), (779, 17017), (1001, 13243), (1309, 10127), (1463, 9061), (1547, 8569), (1729, 7667), (2261, 5863), (2431, 5453), (2717, 4879), (3157, 4199), (3553, 3731)]