21331388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{11087}}^1$

素因数の和:11141

約数の個数: 24

約数和(自身を含む): 41291712

約数和(自身を除く): 19960324

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 481, 962, 1924, 11087, 22174, 44348, 144131, 288262, 410219, 576524, 820438, 1640876, 5332847, 10665694, 21331388]

約数ペア:

[(1, 21331388), (2, 10665694), (4, 5332847), (13, 1640876), (26, 820438), (37, 576524), (52, 410219), (74, 288262), (148, 144131), (481, 44348), (962, 22174), (1924, 11087)]