21083210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23689}}^1$

素因数の和:23785

約数の個数: 16

約数和(自身を含む): 38377800

約数和(自身を除く): 17294590

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23689, 47378, 118445, 236890, 2108321, 4216642, 10541605, 21083210]

約数ペア:

[(1, 21083210), (2, 10541605), (5, 4216642), (10, 2108321), (89, 236890), (178, 118445), (445, 47378), (890, 23689)]