156979767

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{20707}}^1$

素因数の和:20755

約数の個数: 24

約数和(自身を含む): 252471936

約数和(自身を除く): 95492169

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 20707, 62121, 144949, 393433, 434847, 1180299, 2754031, 7475227, 8262093, 22425681, 52326589, 156979767]

約数ペア:

[(1, 156979767), (3, 52326589), (7, 22425681), (19, 8262093), (21, 7475227), (57, 2754031), (133, 1180299), (361, 434847), (399, 393433), (1083, 144949), (2527, 62121), (7581, 20707)]