21040504

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6277}}^1$

素因数の和:6702

約数の個数: 16

約数和(自身を含む): 39551400

約数和(自身を除く): 18510896

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6277, 12554, 25108, 50216, 2630063, 5260126, 10520252, 21040504]

約数ペア:

[(1, 21040504), (2, 10520252), (4, 5260126), (8, 2630063), (419, 50216), (838, 25108), (1676, 12554), (3352, 6277)]