2021897521

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{249217}}^1$

素因数の和:249304

約数の個数: 16

約数和(自身を含む): 2472242560

約数和(自身を除く): 450345039

約数列:

[1, 7, 19, 61, 133, 427, 1159, 8113, 249217, 1744519, 4735123, 15202237, 33145861, 106415659, 288842503, 2021897521]

約数ペア:

[(1, 2021897521), (7, 288842503), (19, 106415659), (61, 33145861), (133, 15202237), (427, 4735123), (1159, 1744519), (8113, 249217)]