1231713

素因数分解:

$3^3\times 7^4\times {\mathrm{19}}^1$

素因数の和:56

約数の個数: 40

約数和(自身を含む): 2240800

約数和(自身を除く): 1009087

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 133, 147, 171, 189, 343, 399, 441, 513, 931, 1029, 1197, 1323, 2401, 2793, 3087, 3591, 6517, 7203, 8379, 9261, 19551, 21609, 25137, 45619, 58653, 64827, 136857, 175959, 410571, 1231713]

約数ペア:

[(1, 1231713), (3, 410571), (7, 175959), (9, 136857), (19, 64827), (21, 58653), (27, 45619), (49, 25137), (57, 21609), (63, 19551), (133, 9261), (147, 8379), (171, 7203), (189, 6517), (343, 3591), (399, 3087), (441, 2793), (513, 2401), (931, 1323), (1029, 1197)]