21167139178

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{971237}}^1$

素因数の和:971897

約数の個数: 16

約数和(自身を含む): 33670878984

約数和(自身を除く): 12503739806

約数列:

[1, 2, 17, 34, 641, 1282, 10897, 21794, 971237, 1942474, 16511029, 33022058, 622562917, 1245125834, 10583569589, 21167139178]

約数ペア:

[(1, 21167139178), (2, 10583569589), (17, 1245125834), (34, 622562917), (641, 33022058), (1282, 16511029), (10897, 1942474), (21794, 971237)]