21059912

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{84919}}^1$

素因数の和:84956

約数の個数: 16

約数和(自身を含む): 40761600

約数和(自身を除く): 19701688

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 84919, 169838, 339676, 679352, 2632489, 5264978, 10529956, 21059912]

約数ペア:

[(1, 21059912), (2, 10529956), (4, 5264978), (8, 2632489), (31, 679352), (62, 339676), (124, 169838), (248, 84919)]