20253513

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{4751}}^1$

素因数の和:4797

約数の個数: 24

約数和(自身を含む): 32503680

約数和(自身を除く): 12250167

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 4751, 14253, 33257, 99771, 137779, 232799, 413337, 698397, 964453, 2893359, 6751171, 20253513]

約数ペア:

[(1, 20253513), (3, 6751171), (7, 2893359), (21, 964453), (29, 698397), (49, 413337), (87, 232799), (147, 137779), (203, 99771), (609, 33257), (1421, 14253), (4263, 4751)]