21903388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1499}}^1$

素因数の和:1797

約数の個数: 24

約数和(自身を含む): 41454000

約数和(自身を除く): 19550612

約数列:

[1, 2, 4, 13, 26, 52, 281, 562, 1124, 1499, 2998, 3653, 5996, 7306, 14612, 19487, 38974, 77948, 421219, 842438, 1684876, 5475847, 10951694, 21903388]

約数ペア:

[(1, 21903388), (2, 10951694), (4, 5475847), (13, 1684876), (26, 842438), (52, 421219), (281, 77948), (562, 38974), (1124, 19487), (1499, 14612), (2998, 7306), (3653, 5996)]