21438507

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{1979}}^1$

素因数の和:2162

約数の個数: 16

約数和(自身を含む): 30032640

約数和(自身を除く): 8594133

約数列:

[1, 3, 23, 69, 157, 471, 1979, 3611, 5937, 10833, 45517, 136551, 310703, 932109, 7146169, 21438507]

約数ペア:

[(1, 21438507), (3, 7146169), (23, 932109), (69, 310703), (157, 136551), (471, 45517), (1979, 10833), (3611, 5937)]