21290552

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{293}}^2$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 41348640

約数和(自身を除く): 20058088

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 293, 586, 1172, 2344, 9083, 18166, 36332, 72664, 85849, 171698, 343396, 686792, 2661319, 5322638, 10645276, 21290552]

約数ペア:

[(1, 21290552), (2, 10645276), (4, 5322638), (8, 2661319), (31, 686792), (62, 343396), (124, 171698), (248, 85849), (293, 72664), (586, 36332), (1172, 18166), (2344, 9083)]