21489393

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1\times {\mathrm{727}}^1$

素因数の和:956

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7863567

約数列:

[1, 3, 59, 167, 177, 501, 727, 2181, 9853, 29559, 42893, 121409, 128679, 364227, 7163131, 21489393]

約数ペア:

[(1, 21489393), (3, 7163131), (59, 364227), (167, 128679), (177, 121409), (501, 42893), (727, 29559), (2181, 9853)]