12988115

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19531}}^1$

素因数の和:19562

約数の個数: 16

約数和(自身を含む): 18750720

約数和(自身を除く): 5762605

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 19531, 97655, 136717, 371089, 683585, 1855445, 2597623, 12988115]

約数ペア:

[(1, 12988115), (5, 2597623), (7, 1855445), (19, 683585), (35, 371089), (95, 136717), (133, 97655), (665, 19531)]