20926575

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{5471}}^1$

素因数の和:5504

約数の個数: 36

約数和(自身を含む): 39693888

約数和(自身を除く): 18767313

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 5471, 16413, 27355, 49239, 82065, 93007, 136775, 246195, 279021, 410325, 465035, 837063, 1230975, 1395105, 2325175, 4185315, 6975525, 20926575]

約数ペア:

[(1, 20926575), (3, 6975525), (5, 4185315), (9, 2325175), (15, 1395105), (17, 1230975), (25, 837063), (45, 465035), (51, 410325), (75, 279021), (85, 246195), (153, 136775), (225, 93007), (255, 82065), (425, 49239), (765, 27355), (1275, 16413), (3825, 5471)]