18961075

素因数分解:

$5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1117}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 27171872

約数和(自身を除く): 8210797

約数列:

[1, 5, 7, 25, 35, 97, 175, 485, 679, 1117, 2425, 3395, 5585, 7819, 16975, 27925, 39095, 108349, 195475, 541745, 758443, 2708725, 3792215, 18961075]

約数ペア:

[(1, 18961075), (5, 3792215), (7, 2708725), (25, 758443), (35, 541745), (97, 195475), (175, 108349), (485, 39095), (679, 27925), (1117, 16975), (2425, 7819), (3395, 5585)]