19720758

素因数分解:

$2^1\times 3^1\times {\mathrm{439}}^1\times {\mathrm{7487}}^1$

素因数の和:7931

約数の個数: 16

約数和(自身を含む): 39536640

約数和(自身を除く): 19815882

約数列:

[1, 2, 3, 6, 439, 878, 1317, 2634, 7487, 14974, 22461, 44922, 3286793, 6573586, 9860379, 19720758]

約数ペア:

[(1, 19720758), (2, 9860379), (3, 6573586), (6, 3286793), (439, 44922), (878, 22461), (1317, 14974), (2634, 7487)]