21241437

素因数分解:

$3^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1549}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 32438400

約数和(自身を除く): 11196963

約数列:

[1, 3, 7, 21, 653, 1549, 1959, 4571, 4647, 10843, 13713, 32529, 1011497, 3034491, 7080479, 21241437]

約数ペア:

[(1, 21241437), (3, 7080479), (7, 3034491), (21, 1011497), (653, 32529), (1549, 13713), (1959, 10843), (4571, 4647)]