20891325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3061}}^1$

素因数の和:3094

約数の個数: 48

約数和(自身を含む): 42525056

約数和(自身を除く): 21633731

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 3061, 6825, 9183, 15305, 21427, 39793, 45915, 64281, 76525, 107135, 119379, 198965, 229575, 278551, 321405, 535675, 596895, 835653, 994825, 1392755, 1607025, 2984475, 4178265, 6963775, 20891325]

約数ペア:

[(1, 20891325), (3, 6963775), (5, 4178265), (7, 2984475), (13, 1607025), (15, 1392755), (21, 994825), (25, 835653), (35, 596895), (39, 535675), (65, 321405), (75, 278551), (91, 229575), (105, 198965), (175, 119379), (195, 107135), (273, 76525), (325, 64281), (455, 45915), (525, 39793), (975, 21427), (1365, 15305), (2275, 9183), (3061, 6825)]