21198892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37061}}^1$

素因数の和:37089

約数の個数: 24

約数和(自身を含む): 43584912

約数和(自身を除く): 22386020

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 37061, 74122, 148244, 407671, 481793, 815342, 963586, 1630684, 1927172, 5299723, 10599446, 21198892]

約数ペア:

[(1, 21198892), (2, 10599446), (4, 5299723), (11, 1927172), (13, 1630684), (22, 963586), (26, 815342), (44, 481793), (52, 407671), (143, 148244), (286, 74122), (572, 37061)]