16972781

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2243}}^1$

素因数の和:2320

約数の個数: 16

約数和(自身を含む): 20680704

約数和(自身を除く): 3707923

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2243, 7567, 15701, 51589, 105421, 361123, 737947, 2424683, 16972781]

約数ペア:

[(1, 16972781), (7, 2424683), (23, 737947), (47, 361123), (161, 105421), (329, 51589), (1081, 15701), (2243, 7567)]