21125257281

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6003199}}^1$

素因数の和:6003245

約数の個数: 24

約数和(自身を含む): 33713971200

約数和(自身を除く): 12588713919

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 6003199, 18009597, 54028791, 102054383, 138073577, 306163149, 414220731, 918489447, 1242662193, 2347250809, 7041752427, 21125257281]

約数ペア:

[(1, 21125257281), (3, 7041752427), (9, 2347250809), (17, 1242662193), (23, 918489447), (51, 414220731), (69, 306163149), (153, 138073577), (207, 102054383), (391, 54028791), (1173, 18009597), (3519, 6003199)]