28619577

素因数分解:

$3^2\times 7^3\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 49254400

約数和(自身を除く): 20634823

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 127, 147, 219, 343, 381, 441, 511, 657, 889, 1029, 1143, 1533, 2667, 3087, 3577, 4599, 6223, 8001, 9271, 10731, 18669, 25039, 27813, 32193, 43561, 56007, 64897, 75117, 83439, 130683, 194691, 225351, 392049, 454279, 584073, 1362837, 3179953, 4088511, 9539859, 28619577]

約数ペア:

[(1, 28619577), (3, 9539859), (7, 4088511), (9, 3179953), (21, 1362837), (49, 584073), (63, 454279), (73, 392049), (127, 225351), (147, 194691), (219, 130683), (343, 83439), (381, 75117), (441, 64897), (511, 56007), (657, 43561), (889, 32193), (1029, 27813), (1143, 25039), (1533, 18669), (2667, 10731), (3087, 9271), (3577, 8001), (4599, 6223)]