21007686

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2539}}^1$

素因数の和:2748

約数の個数: 32

約数和(自身を含む): 48280320

約数和(自身を除く): 27272634

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 197, 394, 591, 1182, 1379, 2539, 2758, 4137, 5078, 7617, 8274, 15234, 17773, 35546, 53319, 106638, 500183, 1000366, 1500549, 3001098, 3501281, 7002562, 10503843, 21007686]

約数ペア:

[(1, 21007686), (2, 10503843), (3, 7002562), (6, 3501281), (7, 3001098), (14, 1500549), (21, 1000366), (42, 500183), (197, 106638), (394, 53319), (591, 35546), (1182, 17773), (1379, 15234), (2539, 8274), (2758, 7617), (4137, 5078)]