21112465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{1427}}^1$

素因数の和:1712

約数の個数: 16

約数和(自身を含む): 27760320

約数和(自身を除く): 6647855

約数列:

[1, 5, 11, 55, 269, 1345, 1427, 2959, 7135, 14795, 15697, 78485, 383863, 1919315, 4222493, 21112465]

約数ペア:

[(1, 21112465), (5, 4222493), (11, 1919315), (55, 383863), (269, 78485), (1345, 15697), (1427, 14795), (2959, 7135)]