21090510

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11159}}^1$

素因数の和:11182

約数の個数: 64

約数和(自身を含む): 64281600

約数和(自身を除く): 43191090

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11159, 22318, 33477, 55795, 66954, 78113, 100431, 111590, 156226, 167385, 200862, 234339, 301293, 334770, 390565, 468678, 502155, 602586, 703017, 781130, 1004310, 1171695, 1406034, 1506465, 2109051, 2343390, 3012930, 3515085, 4218102, 7030170, 10545255, 21090510]

約数ペア:

[(1, 21090510), (2, 10545255), (3, 7030170), (5, 4218102), (6, 3515085), (7, 3012930), (9, 2343390), (10, 2109051), (14, 1506465), (15, 1406034), (18, 1171695), (21, 1004310), (27, 781130), (30, 703017), (35, 602586), (42, 502155), (45, 468678), (54, 390565), (63, 334770), (70, 301293), (90, 234339), (105, 200862), (126, 167385), (135, 156226), (189, 111590), (210, 100431), (270, 78113), (315, 66954), (378, 55795), (630, 33477), (945, 22318), (1890, 11159)]