1388890161

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{223}}^1\times {\mathrm{5449}}^1$

素因数の和:5805

約数の個数: 24

約数和(自身を含む): 2031411200

約数和(自身を除く): 642521039

約数列:

[1, 3, 9, 127, 223, 381, 669, 1143, 2007, 5449, 16347, 28321, 49041, 84963, 254889, 692023, 1215127, 2076069, 3645381, 6228207, 10936143, 154321129, 462963387, 1388890161]

約数ペア:

[(1, 1388890161), (3, 462963387), (9, 154321129), (127, 10936143), (223, 6228207), (381, 3645381), (669, 2076069), (1143, 1215127), (2007, 692023), (5449, 254889), (16347, 84963), (28321, 49041)]