21198606

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:857

約数の個数: 64

約数和(自身を含む): 51480576

約数和(自身を除く): 30281970

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 31, 33, 39, 62, 66, 78, 93, 143, 186, 286, 341, 403, 429, 682, 797, 806, 858, 1023, 1209, 1594, 2046, 2391, 2418, 4433, 4782, 8767, 8866, 10361, 13299, 17534, 20722, 24707, 26301, 26598, 31083, 49414, 52602, 62166, 74121, 113971, 148242, 227942, 271777, 321191, 341913, 543554, 642382, 683826, 815331, 963573, 1630662, 1927146, 3533101, 7066202, 10599303, 21198606]

約数ペア:

[(1, 21198606), (2, 10599303), (3, 7066202), (6, 3533101), (11, 1927146), (13, 1630662), (22, 963573), (26, 815331), (31, 683826), (33, 642382), (39, 543554), (62, 341913), (66, 321191), (78, 271777), (93, 227942), (143, 148242), (186, 113971), (286, 74121), (341, 62166), (403, 52602), (429, 49414), (682, 31083), (797, 26598), (806, 26301), (858, 24707), (1023, 20722), (1209, 17534), (1594, 13299), (2046, 10361), (2391, 8866), (2418, 8767), (4433, 4782)]