21651119

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1511}}^1$

素因数の和:1630

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 4476241

約数列:

[1, 7, 23, 89, 161, 623, 1511, 2047, 10577, 14329, 34753, 134479, 243271, 941353, 3093017, 21651119]

約数ペア:

[(1, 21651119), (7, 3093017), (23, 941353), (89, 243271), (161, 134479), (623, 34753), (1511, 14329), (2047, 10577)]