21410853

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{2521}}^1$

素因数の和:2692

約数の個数: 16

約数和(自身を含む): 30264000

約数和(自身を除く): 8853147

約数列:

[1, 3, 19, 57, 149, 447, 2521, 2831, 7563, 8493, 47899, 143697, 375629, 1126887, 7136951, 21410853]

約数ペア:

[(1, 21410853), (3, 7136951), (19, 1126887), (57, 375629), (149, 143697), (447, 47899), (2521, 8493), (2831, 7563)]