21231277

素因数分解:

${\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{229}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 23184000

約数和(自身を除く): 1952723

約数列:

[1, 23, 29, 139, 229, 667, 3197, 4031, 5267, 6641, 31831, 92713, 152743, 732113, 923099, 21231277]

約数ペア:

[(1, 21231277), (23, 923099), (29, 732113), (139, 152743), (229, 92713), (667, 31831), (3197, 6641), (4031, 5267)]