18965414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{13763}}^1$

素因数の和:13831

約数の個数: 16

約数和(自身を含む): 31216752

約数和(自身を除く): 12251338

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 13763, 27526, 178919, 357838, 729439, 1458878, 9482707, 18965414]

約数ペア:

[(1, 18965414), (2, 9482707), (13, 1458878), (26, 729439), (53, 357838), (106, 178919), (689, 27526), (1378, 13763)]