20275605

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{337}}^1$

素因数の和:546

約数の個数: 48

約数和(自身を含む): 40495104

約数和(自身を除く): 20219499

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 191, 315, 337, 573, 955, 1011, 1337, 1685, 1719, 2359, 2865, 3033, 4011, 5055, 6685, 7077, 8595, 11795, 12033, 15165, 20055, 21231, 35385, 60165, 64367, 106155, 193101, 321835, 450569, 579303, 965505, 1351707, 2252845, 2896515, 4055121, 6758535, 20275605]

約数ペア:

[(1, 20275605), (3, 6758535), (5, 4055121), (7, 2896515), (9, 2252845), (15, 1351707), (21, 965505), (35, 579303), (45, 450569), (63, 321835), (105, 193101), (191, 106155), (315, 64367), (337, 60165), (573, 35385), (955, 21231), (1011, 20055), (1337, 15165), (1685, 12033), (1719, 11795), (2359, 8595), (2865, 7077), (3033, 6685), (4011, 5055)]