21183591

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{67}}^2$

素因数の和:172

約数の個数: 36

約数和(自身を含む): 33940536

約数和(自身を除く): 12756945

約数列:

[1, 3, 11, 13, 33, 39, 67, 121, 143, 201, 363, 429, 737, 871, 1573, 2211, 2613, 4489, 4719, 8107, 9581, 13467, 24321, 28743, 49379, 58357, 105391, 148137, 175071, 316173, 543169, 641927, 1629507, 1925781, 7061197, 21183591]

約数ペア:

[(1, 21183591), (3, 7061197), (11, 1925781), (13, 1629507), (33, 641927), (39, 543169), (67, 316173), (121, 175071), (143, 148137), (201, 105391), (363, 58357), (429, 49379), (737, 28743), (871, 24321), (1573, 13467), (2211, 9581), (2613, 8107), (4489, 4719)]