19721734

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{30529}}^1$

素因数の和:30567

約数の個数: 16

約数和(自身を含む): 32972400

約数和(自身を除く): 13250666

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 30529, 61058, 518993, 580051, 1037986, 1160102, 9860867, 19721734]

約数ペア:

[(1, 19721734), (2, 9860867), (17, 1160102), (19, 1037986), (34, 580051), (38, 518993), (323, 61058), (646, 30529)]