20974394

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21101}}^1$

素因数の和:21181

約数の個数: 16

約数和(自身を含む): 36464256

約数和(自身を除く): 15489862

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 21101, 42202, 147707, 295414, 1498171, 2996342, 10487197, 20974394]

約数ペア:

[(1, 20974394), (2, 10487197), (7, 2996342), (14, 1498171), (71, 295414), (142, 147707), (497, 42202), (994, 21101)]