21912885

素因数分解:

$3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2447}}^1$

素因数の和:2657

約数の個数: 24

約数和(自身を含む): 38188800

約数和(自身を除く): 16275915

約数列:

[1, 3, 5, 9, 15, 45, 199, 597, 995, 1791, 2447, 2985, 7341, 8955, 12235, 22023, 36705, 110115, 486953, 1460859, 2434765, 4382577, 7304295, 21912885]

約数ペア:

[(1, 21912885), (3, 7304295), (5, 4382577), (9, 2434765), (15, 1460859), (45, 486953), (199, 110115), (597, 36705), (995, 22023), (1791, 12235), (2447, 8955), (2985, 7341)]