21882056

素因数分解:

$2^3\times 7^1\times {\mathrm{390751}}^1$

素因数の和:390764

約数の個数: 16

約数和(自身を含む): 46890240

約数和(自身を除く): 25008184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 390751, 781502, 1563004, 2735257, 3126008, 5470514, 10941028, 21882056]

約数ペア:

[(1, 21882056), (2, 10941028), (4, 5470514), (7, 3126008), (8, 2735257), (14, 1563004), (28, 781502), (56, 390751)]