21963435

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{691}}^1$

素因数の和:875

約数の個数: 32

約数和(自身を含む): 38131968

約数和(自身を除く): 16168533

約数列:

[1, 3, 5, 13, 15, 39, 65, 163, 195, 489, 691, 815, 2073, 2119, 2445, 3455, 6357, 8983, 10365, 10595, 26949, 31785, 44915, 112633, 134745, 337899, 563165, 1464229, 1689495, 4392687, 7321145, 21963435]

約数ペア:

[(1, 21963435), (3, 7321145), (5, 4392687), (13, 1689495), (15, 1464229), (39, 563165), (65, 337899), (163, 134745), (195, 112633), (489, 44915), (691, 31785), (815, 26949), (2073, 10595), (2119, 10365), (2445, 8983), (3455, 6357)]