20755845

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1553}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 40727232

約数和(自身を除く): 19971387

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 495, 891, 1215, 1485, 1553, 2673, 4455, 4659, 7765, 13365, 13977, 17083, 23295, 41931, 51249, 69885, 85415, 125793, 153747, 209655, 256245, 377379, 461241, 628965, 768735, 1383723, 1886895, 2306205, 4151169, 6918615, 20755845]

約数ペア:

[(1, 20755845), (3, 6918615), (5, 4151169), (9, 2306205), (11, 1886895), (15, 1383723), (27, 768735), (33, 628965), (45, 461241), (55, 377379), (81, 256245), (99, 209655), (135, 153747), (165, 125793), (243, 85415), (297, 69885), (405, 51249), (495, 41931), (891, 23295), (1215, 17083), (1485, 13977), (1553, 13365), (2673, 7765), (4455, 4659)]