21756642

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{54121}}^1$

素因数の和:54193

約数の個数: 16

約数和(自身を含む): 44163552

約数和(自身を除く): 22406910

約数列:

[1, 2, 3, 6, 67, 134, 201, 402, 54121, 108242, 162363, 324726, 3626107, 7252214, 10878321, 21756642]

約数ペア:

[(1, 21756642), (2, 10878321), (3, 7252214), (6, 3626107), (67, 324726), (134, 162363), (201, 108242), (402, 54121)]