19201521

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3167}}^1$

素因数の和:3260

約数の個数: 16

約数和(自身を含む): 26763264

約数和(自身を除く): 7561743

約数列:

[1, 3, 43, 47, 129, 141, 2021, 3167, 6063, 9501, 136181, 148849, 408543, 446547, 6400507, 19201521]

約数ペア:

[(1, 19201521), (3, 6400507), (43, 446547), (47, 408543), (129, 148849), (141, 136181), (2021, 9501), (3167, 6063)]