20403495

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{2399}}^1$

素因数の和:2426

約数の個数: 48

約数和(自身を含む): 41932800

約数和(自身を除く): 21529305

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 945, 1215, 1701, 2399, 2835, 7197, 8505, 11995, 16793, 21591, 35985, 50379, 64773, 83965, 107955, 151137, 194319, 251895, 323865, 453411, 582957, 755685, 971595, 1360233, 2267055, 2914785, 4080699, 6801165, 20403495]

約数ペア:

[(1, 20403495), (3, 6801165), (5, 4080699), (7, 2914785), (9, 2267055), (15, 1360233), (21, 971595), (27, 755685), (35, 582957), (45, 453411), (63, 323865), (81, 251895), (105, 194319), (135, 151137), (189, 107955), (243, 83965), (315, 64773), (405, 50379), (567, 35985), (945, 21591), (1215, 16793), (1701, 11995), (2399, 8505), (2835, 7197)]