17972685

素因数分解:

$3^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 32524800

約数和(自身を除く): 14552115

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 199, 223, 405, 597, 669, 995, 1115, 1791, 2007, 2985, 3345, 5373, 6021, 8955, 10035, 16119, 18063, 26865, 30105, 44377, 80595, 90315, 133131, 221885, 399393, 665655, 1198179, 1996965, 3594537, 5990895, 17972685]

約数ペア:

[(1, 17972685), (3, 5990895), (5, 3594537), (9, 1996965), (15, 1198179), (27, 665655), (45, 399393), (81, 221885), (135, 133131), (199, 90315), (223, 80595), (405, 44377), (597, 30105), (669, 26865), (995, 18063), (1115, 16119), (1791, 10035), (2007, 8955), (2985, 6021), (3345, 5373)]