20500298

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1543}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 38390016

約数和(自身を除く): 17889718

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1543, 1898, 3086, 6643, 10801, 13286, 20059, 21602, 40118, 112639, 140413, 225278, 280826, 788473, 1464307, 1576946, 2928614, 10250149, 20500298]

約数ペア:

[(1, 20500298), (2, 10250149), (7, 2928614), (13, 1576946), (14, 1464307), (26, 788473), (73, 280826), (91, 225278), (146, 140413), (182, 112639), (511, 40118), (949, 21602), (1022, 20059), (1543, 13286), (1898, 10801), (3086, 6643)]