20761767

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{211}}^1$

素因数の和:288

約数の個数: 36

約数和(自身を含む): 33606664

約数和(自身を除く): 12844897

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 211, 261, 377, 633, 841, 1131, 1899, 2523, 2743, 3393, 6119, 7569, 8229, 10933, 18357, 24687, 32799, 55071, 79547, 98397, 177451, 238641, 532353, 715923, 1597059, 2306863, 6920589, 20761767]

約数ペア:

[(1, 20761767), (3, 6920589), (9, 2306863), (13, 1597059), (29, 715923), (39, 532353), (87, 238641), (117, 177451), (211, 98397), (261, 79547), (377, 55071), (633, 32799), (841, 24687), (1131, 18357), (1899, 10933), (2523, 8229), (2743, 7569), (3393, 6119)]