21279256

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{23539}}^1$

素因数の和:23658

約数の個数: 16

約数和(自身を含む): 40253400

約数和(自身を除く): 18974144

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 23539, 47078, 94156, 188312, 2659907, 5319814, 10639628, 21279256]

約数ペア:

[(1, 21279256), (2, 10639628), (4, 5319814), (8, 2659907), (113, 188312), (226, 94156), (452, 47078), (904, 23539)]