19973325

素因数分解:

$3^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{1061}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 33185376

約数和(自身を除く): 13212051

約数列:

[1, 3, 5, 15, 25, 75, 251, 753, 1061, 1255, 3183, 3765, 5305, 6275, 15915, 18825, 26525, 79575, 266311, 798933, 1331555, 3994665, 6657775, 19973325]

約数ペア:

[(1, 19973325), (3, 6657775), (5, 3994665), (15, 1331555), (25, 798933), (75, 266311), (251, 79575), (753, 26525), (1061, 18825), (1255, 15915), (3183, 6275), (3765, 5305)]