2019978376

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19422869}}^1$

素因数の和:19422888

約数の個数: 16

約数和(自身を含む): 4078802700

約数和(自身を除く): 2058824324

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 19422869, 38845738, 77691476, 155382952, 252497297, 504994594, 1009989188, 2019978376]

約数ペア:

[(1, 2019978376), (2, 1009989188), (4, 504994594), (8, 252497297), (13, 155382952), (26, 77691476), (52, 38845738), (104, 19422869)]