21315952

素因数分解:

$2^4\times 7^1\times {\mathrm{190321}}^1$

素因数の和:190336

約数の個数: 20

約数和(自身を含む): 47199856

約数和(自身を除く): 25883904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 190321, 380642, 761284, 1332247, 1522568, 2664494, 3045136, 5328988, 10657976, 21315952]

約数ペア:

[(1, 21315952), (2, 10657976), (4, 5328988), (7, 3045136), (8, 2664494), (14, 1522568), (16, 1332247), (28, 761284), (56, 380642), (112, 190321)]