21462909

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{4201}}^1$

素因数の和:4348

約数の個数: 16

約数和(自身を含む): 31061184

約数和(自身を除く): 9598275

約数列:

[1, 3, 13, 39, 131, 393, 1703, 4201, 5109, 12603, 54613, 163839, 550331, 1650993, 7154303, 21462909]

約数ペア:

[(1, 21462909), (3, 7154303), (13, 1650993), (39, 550331), (131, 163839), (393, 54613), (1703, 12603), (4201, 5109)]