20212878

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13007}}^1$

素因数の和:13056

約数の個数: 32

約数和(自身を含む): 47453184

約数和(自身を除く): 27240306

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13007, 26014, 39021, 78042, 91049, 182098, 273147, 481259, 546294, 962518, 1443777, 2887554, 3368813, 6737626, 10106439, 20212878]

約数ペア:

[(1, 20212878), (2, 10106439), (3, 6737626), (6, 3368813), (7, 2887554), (14, 1443777), (21, 962518), (37, 546294), (42, 481259), (74, 273147), (111, 182098), (222, 91049), (259, 78042), (518, 39021), (777, 26014), (1554, 13007)]