21990959901

素因数分解:

$3^2\times {\mathrm{1627}}^1\times {\mathrm{1501807}}^1$

素因数の和:1503440

約数の個数: 12

約数和(自身を含む): 31784264512

約数和(自身を除く): 9793304611

約数列:

[1, 3, 9, 1627, 4881, 14643, 1501807, 4505421, 13516263, 2443439989, 7330319967, 21990959901]

約数ペア:

[(1, 21990959901), (3, 7330319967), (9, 2443439989), (1627, 13516263), (4881, 4505421), (14643, 1501807)]