21498745077

素因数分解:

$3^2\times {\mathrm{195751}}^1\times {\mathrm{12203}}^1$

素因数の和:207960

約数の個数: 12

約数和(自身を含む): 31056446304

約数和(自身を除く): 9557701227

約数列:

[1, 3, 9, 12203, 36609, 109827, 195751, 587253, 1761759, 2388749453, 7166248359, 21498745077]

約数ペア:

[(1, 21498745077), (3, 7166248359), (9, 2388749453), (12203, 1761759), (36609, 587253), (109827, 195751)]