18448567221

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20430307}}^1$

素因数の和:20430360

約数の個数: 16

約数和(自身を含む): 28765873664

約数和(自身を除く): 10317306443

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 20430307, 61290921, 143012149, 429036447, 878503201, 2635509603, 6149522407, 18448567221]

約数ペア:

[(1, 18448567221), (3, 6149522407), (7, 2635509603), (21, 878503201), (43, 429036447), (129, 143012149), (301, 61290921), (903, 20430307)]