28613481

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 13964439

約数列:

[1, 3, 13, 39, 53, 109, 127, 159, 327, 381, 689, 1417, 1651, 2067, 4251, 4953, 5777, 6731, 13843, 17331, 20193, 41529, 75101, 87503, 179959, 225303, 262509, 539877, 733679, 2201037, 9537827, 28613481]

約数ペア:

[(1, 28613481), (3, 9537827), (13, 2201037), (39, 733679), (53, 539877), (109, 262509), (127, 225303), (159, 179959), (327, 87503), (381, 75101), (689, 41529), (1417, 20193), (1651, 17331), (2067, 13843), (4251, 6731), (4953, 5777)]