21743820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17257}}^1$

素因数の和:17279

約数の個数: 72

約数和(自身を含む): 75382944

約数和(自身を除く): 53639124

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17257, 34514, 51771, 69028, 86285, 103542, 120799, 155313, 172570, 207084, 241598, 258855, 310626, 345140, 362397, 483196, 517710, 603995, 621252, 724794, 776565, 1035420, 1087191, 1207990, 1449588, 1553130, 1811985, 2174382, 2415980, 3106260, 3623970, 4348764, 5435955, 7247940, 10871910, 21743820]

約数ペア:

[(1, 21743820), (2, 10871910), (3, 7247940), (4, 5435955), (5, 4348764), (6, 3623970), (7, 3106260), (9, 2415980), (10, 2174382), (12, 1811985), (14, 1553130), (15, 1449588), (18, 1207990), (20, 1087191), (21, 1035420), (28, 776565), (30, 724794), (35, 621252), (36, 603995), (42, 517710), (45, 483196), (60, 362397), (63, 345140), (70, 310626), (84, 258855), (90, 241598), (105, 207084), (126, 172570), (140, 155313), (180, 120799), (210, 103542), (252, 86285), (315, 69028), (420, 51771), (630, 34514), (1260, 17257)]