20912868

素因数分解:

$2^2\times 3^2\times {\mathrm{580913}}^1$

素因数の和:580923

約数の個数: 18

約数和(自身を含む): 52863174

約数和(自身を除く): 31950306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 580913, 1161826, 1742739, 2323652, 3485478, 5228217, 6970956, 10456434, 20912868]

約数ペア:

[(1, 20912868), (2, 10456434), (3, 6970956), (4, 5228217), (6, 3485478), (9, 2323652), (12, 1742739), (18, 1161826), (36, 580913)]