21043963

素因数分解:

${\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:418

約数の個数: 16

約数和(自身を含む): 22935040

約数和(自身を除く): 1891077

約数列:

[1, 19, 61, 67, 271, 1159, 1273, 4087, 5149, 16531, 18157, 77653, 314089, 344983, 1107577, 21043963]

約数ペア:

[(1, 21043963), (19, 1107577), (61, 344983), (67, 314089), (271, 77653), (1159, 18157), (1273, 16531), (4087, 5149)]