28245679

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 9493841

約数列:

[1, 7, 11, 23, 41, 77, 161, 253, 287, 389, 451, 943, 1771, 2723, 3157, 4279, 6601, 8947, 10373, 15949, 29953, 62629, 72611, 98417, 111643, 175439, 366827, 688919, 1228073, 2567789, 4035097, 28245679]

約数ペア:

[(1, 28245679), (7, 4035097), (11, 2567789), (23, 1228073), (41, 688919), (77, 366827), (161, 175439), (253, 111643), (287, 98417), (389, 72611), (451, 62629), (943, 29953), (1771, 15949), (2723, 10373), (3157, 8947), (4279, 6601)]