21809612

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{937}}^1$

素因数の和:998

約数の個数: 36

約数和(自身を含む): 43571976

約数和(自身を除く): 21762364

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 529, 937, 1012, 1058, 1874, 2116, 3748, 5819, 10307, 11638, 20614, 21551, 23276, 41228, 43102, 86204, 237061, 474122, 495673, 948244, 991346, 1982692, 5452403, 10904806, 21809612]

約数ペア:

[(1, 21809612), (2, 10904806), (4, 5452403), (11, 1982692), (22, 991346), (23, 948244), (44, 495673), (46, 474122), (92, 237061), (253, 86204), (506, 43102), (529, 41228), (937, 23276), (1012, 21551), (1058, 20614), (1874, 11638), (2116, 10307), (3748, 5819)]