20288499

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12547}}^1$

素因数の和:12575

約数の個数: 24

約数和(自身を含む): 34331328

約数和(自身を除く): 14042829

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12547, 37641, 87829, 138017, 263487, 414051, 614803, 966119, 1844409, 2898357, 6762833, 20288499]

約数ペア:

[(1, 20288499), (3, 6762833), (7, 2898357), (11, 1844409), (21, 966119), (33, 614803), (49, 414051), (77, 263487), (147, 138017), (231, 87829), (539, 37641), (1617, 12547)]