21088456

素因数分解:

$2^3\times {\mathrm{197}}^1\times {\mathrm{13381}}^1$

素因数の和:13584

約数の個数: 16

約数和(自身を含む): 39744540

約数和(自身を除く): 18656084

約数列:

[1, 2, 4, 8, 197, 394, 788, 1576, 13381, 26762, 53524, 107048, 2636057, 5272114, 10544228, 21088456]

約数ペア:

[(1, 21088456), (2, 10544228), (4, 5272114), (8, 2636057), (197, 107048), (394, 53524), (788, 26762), (1576, 13381)]