21052035

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9173}}^1$

素因数の和:9204

約数の個数: 32

約数和(自身を含む): 39631680

約数和(自身を除く): 18579645

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 9173, 27519, 45865, 82557, 137595, 155941, 247671, 412785, 467823, 779705, 1238355, 1403469, 2339115, 4210407, 7017345, 21052035]

約数ペア:

[(1, 21052035), (3, 7017345), (5, 4210407), (9, 2339115), (15, 1403469), (17, 1238355), (27, 779705), (45, 467823), (51, 412785), (85, 247671), (135, 155941), (153, 137595), (255, 82557), (459, 45865), (765, 27519), (2295, 9173)]