18921265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{6491}}^1$

素因数の和:6560

約数の個数: 16

約数和(自身を含む): 25240896

約数和(自身を除く): 6319631

約数列:

[1, 5, 11, 53, 55, 265, 583, 2915, 6491, 32455, 71401, 344023, 357005, 1720115, 3784253, 18921265]

約数ペア:

[(1, 18921265), (5, 3784253), (11, 1720115), (53, 357005), (55, 344023), (265, 71401), (583, 32455), (2915, 6491)]