19794089

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 24208128

約数和(自身を除く): 4414039

約数列:

[1, 7, 31, 49, 83, 157, 217, 581, 1099, 1519, 2573, 4067, 4867, 7693, 13031, 18011, 34069, 91217, 126077, 238483, 403961, 638519, 2827727, 19794089]

約数ペア:

[(1, 19794089), (7, 2827727), (31, 638519), (49, 403961), (83, 238483), (157, 126077), (217, 91217), (581, 34069), (1099, 18011), (1519, 13031), (2573, 7693), (4067, 4867)]