20211783

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{3061}}^1$

素因数の和:3166

約数の個数: 16

約数和(自身を含む): 28219392

約数和(自身を除く): 8007609

約数列:

[1, 3, 31, 71, 93, 213, 2201, 3061, 6603, 9183, 94891, 217331, 284673, 651993, 6737261, 20211783]

約数ペア:

[(1, 20211783), (3, 6737261), (31, 651993), (71, 284673), (93, 217331), (213, 94891), (2201, 9183), (3061, 6603)]