218204854

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{820319}}^1$

素因数の和:820347

約数の個数: 16

約数和(自身を含む): 393753600

約数和(自身を除く): 175548746

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 820319, 1640638, 5742233, 11484466, 15586061, 31172122, 109102427, 218204854]

約数ペア:

[(1, 218204854), (2, 109102427), (7, 31172122), (14, 15586061), (19, 11484466), (38, 5742233), (133, 1640638), (266, 820319)]