18812925

素因数分解:

$3^3\times 5^2\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:659

約数の個数: 48

約数和(自身を含む): 35354880

約数和(自身を除く): 16541955

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 47, 75, 135, 141, 225, 235, 423, 593, 675, 705, 1175, 1269, 1779, 2115, 2965, 3525, 5337, 6345, 8895, 10575, 14825, 16011, 26685, 27871, 31725, 44475, 80055, 83613, 133425, 139355, 250839, 400275, 418065, 696775, 752517, 1254195, 2090325, 3762585, 6270975, 18812925]

約数ペア:

[(1, 18812925), (3, 6270975), (5, 3762585), (9, 2090325), (15, 1254195), (25, 752517), (27, 696775), (45, 418065), (47, 400275), (75, 250839), (135, 139355), (141, 133425), (225, 83613), (235, 80055), (423, 44475), (593, 31725), (675, 27871), (705, 26685), (1175, 16011), (1269, 14825), (1779, 10575), (2115, 8895), (2965, 6345), (3525, 5337)]