21990652304

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25932373}}^1$

素因数の和:25932434

約数の個数: 20

約数和(自身を含む): 43410794076

約数和(自身を除く): 21420141772

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25932373, 51864746, 103729492, 207458984, 414917968, 1374415769, 2748831538, 5497663076, 10995326152, 21990652304]

約数ペア:

[(1, 21990652304), (2, 10995326152), (4, 5497663076), (8, 2748831538), (16, 1374415769), (53, 414917968), (106, 207458984), (212, 103729492), (424, 51864746), (848, 25932373)]