21071038

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{7019}}^1$

素因数の和:7119

約数の個数: 16

約数和(自身を含む): 33696000

約数和(自身を除く): 12624962

約数列:

[1, 2, 19, 38, 79, 158, 1501, 3002, 7019, 14038, 133361, 266722, 554501, 1109002, 10535519, 21071038]

約数ペア:

[(1, 21071038), (2, 10535519), (19, 1109002), (38, 554501), (79, 266722), (158, 133361), (1501, 14038), (3002, 7019)]