19747191

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3257}}^1$

素因数の和:3350

約数の個数: 16

約数和(自身を含む): 27523584

約数和(自身を除く): 7776393

約数列:

[1, 3, 43, 47, 129, 141, 2021, 3257, 6063, 9771, 140051, 153079, 420153, 459237, 6582397, 19747191]

約数ペア:

[(1, 19747191), (3, 6582397), (43, 459237), (47, 420153), (129, 153079), (141, 140051), (2021, 9771), (3257, 6063)]