1978215

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3067}}^1$

素因数の和:3118

約数の個数: 16

約数和(自身を含む): 3239808

約数和(自身を除く): 1261593

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 3067, 9201, 15335, 46005, 131881, 395643, 659405, 1978215]

約数ペア:

[(1, 1978215), (3, 659405), (5, 395643), (15, 131881), (43, 46005), (129, 15335), (215, 9201), (645, 3067)]