28020098

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{197}}^2$

素因数の和:434

約数の個数: 18

約数和(自身を含む): 44585001

約数和(自身を除く): 16564903

約数列:

[1, 2, 19, 38, 197, 361, 394, 722, 3743, 7486, 38809, 71117, 77618, 142234, 737371, 1474742, 14010049, 28020098]

約数ペア:

[(1, 28020098), (2, 14010049), (19, 1474742), (38, 737371), (197, 142234), (361, 77618), (394, 71117), (722, 38809), (3743, 7486)]