21365718

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2549}}^1$

素因数の和:2692

約数の個数: 32

約数和(自身を含む): 47001600

約数和(自身を除く): 25635882

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 127, 254, 381, 762, 1397, 2549, 2794, 4191, 5098, 7647, 8382, 15294, 28039, 56078, 84117, 168234, 323723, 647446, 971169, 1942338, 3560953, 7121906, 10682859, 21365718]

約数ペア:

[(1, 21365718), (2, 10682859), (3, 7121906), (6, 3560953), (11, 1942338), (22, 971169), (33, 647446), (66, 323723), (127, 168234), (254, 84117), (381, 56078), (762, 28039), (1397, 15294), (2549, 8382), (2794, 7647), (4191, 5098)]