21355582

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{2239}}^1$

素因数の和:2511

約数の個数: 16

約数和(自身を含む): 33868800

約数和(自身を除く): 12513218

約数列:

[1, 2, 19, 38, 251, 502, 2239, 4478, 4769, 9538, 42541, 85082, 561989, 1123978, 10677791, 21355582]

約数ペア:

[(1, 21355582), (2, 10677791), (19, 1123978), (38, 561989), (251, 85082), (502, 42541), (2239, 9538), (4478, 4769)]