21897449

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3163}}^1$

素因数の和:3236

約数の個数: 16

約数和(自身を含む): 26729472

約数和(自身を除く): 4832023

約数列:

[1, 7, 23, 43, 161, 301, 989, 3163, 6923, 22141, 72749, 136009, 509243, 952063, 3128207, 21897449]

約数ペア:

[(1, 21897449), (7, 3128207), (23, 952063), (43, 509243), (161, 136009), (301, 72749), (989, 22141), (3163, 6923)]