21205796

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{373}}^1$

素因数の和:671

約数の個数: 24

約数和(自身を含む): 37981944

約数和(自身を除く): 16776148

約数列:

[1, 2, 4, 61, 122, 233, 244, 373, 466, 746, 932, 1492, 14213, 22753, 28426, 45506, 56852, 86909, 91012, 173818, 347636, 5301449, 10602898, 21205796]

約数ペア:

[(1, 21205796), (2, 10602898), (4, 5301449), (61, 347636), (122, 173818), (233, 91012), (244, 86909), (373, 56852), (466, 45506), (746, 28426), (932, 22753), (1492, 14213)]