27791985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{397}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 48142080

約数和(自身を除く): 20350095

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 359, 397, 1077, 1191, 1795, 1985, 4667, 5161, 5385, 5955, 14001, 15483, 23335, 25805, 70005, 77415, 142523, 427569, 712615, 1852799, 2137845, 5558397, 9263995, 27791985]

約数ペア:

[(1, 27791985), (3, 9263995), (5, 5558397), (13, 2137845), (15, 1852799), (39, 712615), (65, 427569), (195, 142523), (359, 77415), (397, 70005), (1077, 25805), (1191, 23335), (1795, 15483), (1985, 14001), (4667, 5955), (5161, 5385)]