21251572

素因数分解:

$2^2\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 37837800

約数和(自身を除く): 16586228

約数列:

[1, 2, 4, 149, 181, 197, 298, 362, 394, 596, 724, 788, 26969, 29353, 35657, 53938, 58706, 71314, 107876, 117412, 142628, 5312893, 10625786, 21251572]

約数ペア:

[(1, 21251572), (2, 10625786), (4, 5312893), (149, 142628), (181, 117412), (197, 107876), (298, 71314), (362, 58706), (394, 53938), (596, 35657), (724, 29353), (788, 26969)]