20784244

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{2647}}^1$

素因数の和:2815

約数の個数: 24

約数和(自身を含む): 39444608

約数和(自身を除く): 18660364

約数列:

[1, 2, 4, 13, 26, 52, 151, 302, 604, 1963, 2647, 3926, 5294, 7852, 10588, 34411, 68822, 137644, 399697, 799394, 1598788, 5196061, 10392122, 20784244]

約数ペア:

[(1, 20784244), (2, 10392122), (4, 5196061), (13, 1598788), (26, 799394), (52, 399697), (151, 137644), (302, 68822), (604, 34411), (1963, 10588), (2647, 7852), (3926, 5294)]