21123118

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1\times {\mathrm{823}}^1$

素因数の和:1179

約数の個数: 16

約数和(自身を含む): 32600736

約数和(自身を除く): 11477618

約数列:

[1, 2, 41, 82, 313, 626, 823, 1646, 12833, 25666, 33743, 67486, 257599, 515198, 10561559, 21123118]

約数ペア:

[(1, 21123118), (2, 10561559), (41, 515198), (82, 257599), (313, 67486), (626, 33743), (823, 25666), (1646, 12833)]