21849842

素因数分解:

$2^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{12289}}^1$

素因数の和:12425

約数の個数: 16

約数和(自身を含む): 37754880

約数和(自身を除く): 15905038

約数列:

[1, 2, 7, 14, 127, 254, 889, 1778, 12289, 24578, 86023, 172046, 1560703, 3121406, 10924921, 21849842]

約数ペア:

[(1, 21849842), (2, 10924921), (7, 3121406), (14, 1560703), (127, 172046), (254, 86023), (889, 24578), (1778, 12289)]