21981051

素因数分解:

$3^5\times {\mathrm{17}}^2\times {\mathrm{313}}^1$

素因数の和:362

約数の個数: 36

約数和(自身を含む): 35088872

約数和(自身を除く): 13107821

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 289, 313, 459, 867, 939, 1377, 2601, 2817, 4131, 5321, 7803, 8451, 15963, 23409, 25353, 47889, 70227, 76059, 90457, 143667, 271371, 431001, 814113, 1293003, 2442339, 7327017, 21981051]

約数ペア:

[(1, 21981051), (3, 7327017), (9, 2442339), (17, 1293003), (27, 814113), (51, 431001), (81, 271371), (153, 143667), (243, 90457), (289, 76059), (313, 70227), (459, 47889), (867, 25353), (939, 23409), (1377, 15963), (2601, 8451), (2817, 7803), (4131, 5321)]