21397348

素因数分解:

$2^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{4001}}^1$

素因数の和:4203

約数の個数: 24

約数和(自身を含む): 43029504

約数和(自身を除く): 21632156

約数列:

[1, 2, 4, 7, 14, 28, 191, 382, 764, 1337, 2674, 4001, 5348, 8002, 16004, 28007, 56014, 112028, 764191, 1528382, 3056764, 5349337, 10698674, 21397348]

約数ペア:

[(1, 21397348), (2, 10698674), (4, 5349337), (7, 3056764), (14, 1528382), (28, 764191), (191, 112028), (382, 56014), (764, 28007), (1337, 16004), (2674, 8002), (4001, 5348)]