18531955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{541}}^1$

素因数の和:607

約数の個数: 32

約数和(自身を含む): 26224128

約数和(自身を除く): 7692173

約数列:

[1, 5, 13, 17, 31, 65, 85, 155, 221, 403, 527, 541, 1105, 2015, 2635, 2705, 6851, 7033, 9197, 16771, 34255, 35165, 45985, 83855, 119561, 218023, 285107, 597805, 1090115, 1425535, 3706391, 18531955]

約数ペア:

[(1, 18531955), (5, 3706391), (13, 1425535), (17, 1090115), (31, 597805), (65, 285107), (85, 218023), (155, 119561), (221, 83855), (403, 45985), (527, 35165), (541, 34255), (1105, 16771), (2015, 9197), (2635, 7033), (2705, 6851)]