21095942

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{7649}}^1$

素因数の和:7855

約数の個数: 16

約数和(自身を含む): 36352800

約数和(自身を除く): 15256858

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 7649, 15298, 53543, 107086, 1506853, 3013706, 10547971, 21095942]

約数ペア:

[(1, 21095942), (2, 10547971), (7, 3013706), (14, 1506853), (197, 107086), (394, 53543), (1379, 15298), (2758, 7649)]