2021656028

素因数分解:

$2^2\times 7^1\times {\mathrm{72202001}}^1$

素因数の和:72202012

約数の個数: 12

約数和(自身を含む): 4043312112

約数和(自身を除く): 2021656084

約数列:

[1, 2, 4, 7, 14, 28, 72202001, 144404002, 288808004, 505414007, 1010828014, 2021656028]

約数ペア:

[(1, 2021656028), (2, 1010828014), (4, 505414007), (7, 288808004), (14, 144404002), (28, 72202001)]