821620126

素因数分解:

$2^1\times {\mathrm{389}}^1\times {\mathrm{521}}^1\times {\mathrm{2027}}^1$

素因数の和:2939

約数の個数: 16

約数和(自身を含む): 1238580720

約数和(自身を除く): 416960594

約数列:

[1, 2, 389, 521, 778, 1042, 2027, 4054, 202669, 405338, 788503, 1056067, 1577006, 2112134, 410810063, 821620126]

約数ペア:

[(1, 821620126), (2, 410810063), (389, 2112134), (521, 1577006), (778, 1056067), (1042, 788503), (2027, 405338), (4054, 202669)]