21510892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{829}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 40670000

約数和(自身を除く): 19159108

約数列:

[1, 2, 4, 13, 26, 52, 499, 829, 998, 1658, 1996, 3316, 6487, 10777, 12974, 21554, 25948, 43108, 413671, 827342, 1654684, 5377723, 10755446, 21510892]

約数ペア:

[(1, 21510892), (2, 10755446), (4, 5377723), (13, 1654684), (26, 827342), (52, 413671), (499, 43108), (829, 25948), (998, 21554), (1658, 12974), (1996, 10777), (3316, 6487)]