18966375

素因数分解:

$3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{733}}^1$

素因数の和:777

約数の個数: 48

約数和(自身を含む): 35725248

約数和(自身を除く): 16758873

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 125, 207, 225, 345, 375, 575, 733, 1035, 1125, 1725, 2199, 2875, 3665, 5175, 6597, 8625, 10995, 16859, 18325, 25875, 32985, 50577, 54975, 84295, 91625, 151731, 164925, 252885, 274875, 421475, 758655, 824625, 1264425, 2107375, 3793275, 6322125, 18966375]

約数ペア:

[(1, 18966375), (3, 6322125), (5, 3793275), (9, 2107375), (15, 1264425), (23, 824625), (25, 758655), (45, 421475), (69, 274875), (75, 252885), (115, 164925), (125, 151731), (207, 91625), (225, 84295), (345, 54975), (375, 50577), (575, 32985), (733, 25875), (1035, 18325), (1125, 16859), (1725, 10995), (2199, 8625), (2875, 6597), (3665, 5175)]