21907137

素因数分解:

$3^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{1583}}^1$

素因数の和:2252

約数の個数: 16

約数和(自身を含む): 33454080

約数和(自身を除く): 11546943

約数列:

[1, 3, 7, 21, 659, 1583, 1977, 4613, 4749, 11081, 13839, 33243, 1043197, 3129591, 7302379, 21907137]

約数ペア:

[(1, 21907137), (3, 7302379), (7, 3129591), (21, 1043197), (659, 33243), (1583, 13839), (1977, 11081), (4613, 4749)]