21269541

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1637}}^1$

素因数の和:1772

約数の個数: 16

約数和(自身を含む): 29248128

約数和(自身を除く): 7978587

約数列:

[1, 3, 61, 71, 183, 213, 1637, 4331, 4911, 12993, 99857, 116227, 299571, 348681, 7089847, 21269541]

約数ペア:

[(1, 21269541), (3, 7089847), (61, 348681), (71, 299571), (183, 116227), (213, 99857), (1637, 12993), (4331, 4911)]