19312965

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:319

約数の個数: 64

約数和(自身を含む): 39813120

約数和(自身を除く): 20500155

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 107, 135, 189, 191, 315, 321, 535, 573, 749, 945, 955, 963, 1337, 1605, 1719, 2247, 2865, 2889, 3745, 4011, 4815, 5157, 6685, 6741, 8595, 11235, 12033, 14445, 20055, 20223, 20437, 25785, 33705, 36099, 60165, 61311, 101115, 102185, 143059, 180495, 183933, 306555, 429177, 551799, 715295, 919665, 1287531, 2145885, 2758995, 3862593, 6437655, 19312965]

約数ペア:

[(1, 19312965), (3, 6437655), (5, 3862593), (7, 2758995), (9, 2145885), (15, 1287531), (21, 919665), (27, 715295), (35, 551799), (45, 429177), (63, 306555), (105, 183933), (107, 180495), (135, 143059), (189, 102185), (191, 101115), (315, 61311), (321, 60165), (535, 36099), (573, 33705), (749, 25785), (945, 20437), (955, 20223), (963, 20055), (1337, 14445), (1605, 12033), (1719, 11235), (2247, 8595), (2865, 6741), (2889, 6685), (3745, 5157), (4011, 4815)]