17778956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{6451}}^1$

素因数の和:6521

約数の個数: 24

約数和(自身を含む): 34143984

約数和(自身を除く): 16365028

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 6451, 12902, 25804, 83863, 167726, 335452, 341903, 683806, 1367612, 4444739, 8889478, 17778956]

約数ペア:

[(1, 17778956), (2, 8889478), (4, 4444739), (13, 1367612), (26, 683806), (52, 341903), (53, 335452), (106, 167726), (212, 83863), (689, 25804), (1378, 12902), (2756, 6451)]