21045437

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1951}}^1$

素因数の和:2048

約数の個数: 16

約数和(自身を含む): 25485312

約数和(自身を除く): 4439875

約数列:

[1, 7, 23, 67, 161, 469, 1541, 1951, 10787, 13657, 44873, 130717, 314111, 915019, 3006491, 21045437]

約数ペア:

[(1, 21045437), (7, 3006491), (23, 915019), (67, 314111), (161, 130717), (469, 44873), (1541, 13657), (1951, 10787)]