20808220167

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2158753}}^1$

素因数の和:2158789

約数の個数: 40

約数和(自身を含む): 37614129696

約数和(自身を除く): 16805909529

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 3213, 9639, 2158753, 6476259, 15111271, 19428777, 36698801, 45333813, 58286331, 110096403, 136001439, 174858993, 256891607, 330289209, 408004317, 770674821, 990867627, 1224012951, 2312024463, 2972602881, 6936073389, 20808220167]

約数ペア:

[(1, 20808220167), (3, 6936073389), (7, 2972602881), (9, 2312024463), (17, 1224012951), (21, 990867627), (27, 770674821), (51, 408004317), (63, 330289209), (81, 256891607), (119, 174858993), (153, 136001439), (189, 110096403), (357, 58286331), (459, 45333813), (567, 36698801), (1071, 19428777), (1377, 15111271), (3213, 6476259), (9639, 2158753)]