19928755

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1399}}^1$

素因数の和:1459

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10714445

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 1399, 2035, 2849, 6995, 9793, 14245, 15389, 48965, 51763, 76945, 107723, 258815, 362341, 538615, 569393, 1811705, 2846965, 3985751, 19928755]

約数ペア:

[(1, 19928755), (5, 3985751), (7, 2846965), (11, 1811705), (35, 569393), (37, 538615), (55, 362341), (77, 258815), (185, 107723), (259, 76945), (385, 51763), (407, 48965), (1295, 15389), (1399, 14245), (2035, 9793), (2849, 6995)]