21380961

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{44267}}^1$

素因数の和:44300

約数の個数: 16

約数和(自身を含む): 33997824

約数和(自身を除く): 12616863

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 44267, 132801, 309869, 929607, 1018141, 3054423, 7126987, 21380961]

約数ペア:

[(1, 21380961), (3, 7126987), (7, 3054423), (21, 1018141), (23, 929607), (69, 309869), (161, 132801), (483, 44267)]