2215808217

素因数分解:

$3^4\times 7^1\times {\mathrm{3907951}}^1$

素因数の和:3907970

約数の個数: 20

約数和(自身を含む): 3782897536

約数和(自身を除く): 1567089319

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3907951, 11723853, 27355657, 35171559, 82066971, 105514677, 246200913, 316544031, 738602739, 2215808217]

約数ペア:

[(1, 2215808217), (3, 738602739), (7, 316544031), (9, 246200913), (21, 105514677), (27, 82066971), (63, 35171559), (81, 27355657), (189, 11723853), (567, 3907951)]