21303826

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{2657}}^1$

素因数の和:2889

約数の個数: 16

約数和(自身を含む): 33809760

約数和(自身を除く): 12505934

約数列:

[1, 2, 19, 38, 211, 422, 2657, 4009, 5314, 8018, 50483, 100966, 560627, 1121254, 10651913, 21303826]

約数ペア:

[(1, 21303826), (2, 10651913), (19, 1121254), (38, 560627), (211, 100966), (422, 50483), (2657, 8018), (4009, 5314)]