20615175

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{4363}}^1$

素因数の和:4389

約数の個数: 48

約数和(自身を含む): 43290880

約数和(自身を除く): 22675705

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4363, 4725, 13089, 21815, 30541, 39267, 65445, 91623, 109075, 117801, 152705, 196335, 274869, 327225, 458115, 589005, 763525, 824607, 981675, 1374345, 2290575, 2945025, 4123035, 6871725, 20615175]

約数ペア:

[(1, 20615175), (3, 6871725), (5, 4123035), (7, 2945025), (9, 2290575), (15, 1374345), (21, 981675), (25, 824607), (27, 763525), (35, 589005), (45, 458115), (63, 327225), (75, 274869), (105, 196335), (135, 152705), (175, 117801), (189, 109075), (225, 91623), (315, 65445), (525, 39267), (675, 30541), (945, 21815), (1575, 13089), (4363, 4725)]