27984775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12301}}^1$

素因数の和:12331

約数の個数: 24

約数和(自身を含む): 42712544

約数和(自身を除く): 14727769

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 12301, 61505, 86107, 159913, 307525, 430535, 799565, 1119391, 2152675, 3997825, 5596955, 27984775]

約数ペア:

[(1, 27984775), (5, 5596955), (7, 3997825), (13, 2152675), (25, 1119391), (35, 799565), (65, 430535), (91, 307525), (175, 159913), (325, 86107), (455, 61505), (2275, 12301)]