21085636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 43803648

約数和(自身を除く): 22718012

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 191, 193, 286, 382, 386, 572, 764, 772, 2101, 2123, 2483, 2509, 4202, 4246, 4966, 5018, 8404, 8492, 9932, 10036, 27313, 27599, 36863, 54626, 55198, 73726, 109252, 110396, 147452, 405493, 479219, 810986, 958438, 1621972, 1916876, 5271409, 10542818, 21085636]

約数ペア:

[(1, 21085636), (2, 10542818), (4, 5271409), (11, 1916876), (13, 1621972), (22, 958438), (26, 810986), (44, 479219), (52, 405493), (143, 147452), (191, 110396), (193, 109252), (286, 73726), (382, 55198), (386, 54626), (572, 36863), (764, 27599), (772, 27313), (2101, 10036), (2123, 9932), (2483, 8492), (2509, 8404), (4202, 5018), (4246, 4966)]