19981115

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{51899}}^1$

素因数の和:51922

約数の個数: 16

約数和(自身を含む): 29894400

約数和(自身を除く): 9913285

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 51899, 259495, 363293, 570889, 1816465, 2854445, 3996223, 19981115]

約数ペア:

[(1, 19981115), (5, 3996223), (7, 2854445), (11, 1816465), (35, 570889), (55, 363293), (77, 259495), (385, 51899)]