19697781

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{4889}}^1$

素因数の和:4988

約数の個数: 16

約数和(自身を含む): 28166400

約数和(自身を除く): 8468619

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 4889, 14667, 83113, 249339, 386231, 1158693, 6565927, 19697781]

約数ペア:

[(1, 19697781), (3, 6565927), (17, 1158693), (51, 386231), (79, 249339), (237, 83113), (1343, 14667), (4029, 4889)]