21210420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4591}}^1$

素因数の和:4621

約数の個数: 96

約数和(自身を含む): 74059776

約数和(自身を除く): 52849356

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 4591, 4620, 9182, 13773, 18364, 22955, 27546, 32137, 45910, 50501, 55092, 64274, 68865, 91820, 96411, 101002, 128548, 137730, 151503, 160685, 192822, 202004, 252505, 275460, 303006, 321370, 353507, 385644, 482055, 505010, 606012, 642740, 707014, 757515, 964110, 1010020, 1060521, 1414028, 1515030, 1767535, 1928220, 2121042, 3030060, 3535070, 4242084, 5302605, 7070140, 10605210, 21210420]

約数ペア:

[(1, 21210420), (2, 10605210), (3, 7070140), (4, 5302605), (5, 4242084), (6, 3535070), (7, 3030060), (10, 2121042), (11, 1928220), (12, 1767535), (14, 1515030), (15, 1414028), (20, 1060521), (21, 1010020), (22, 964110), (28, 757515), (30, 707014), (33, 642740), (35, 606012), (42, 505010), (44, 482055), (55, 385644), (60, 353507), (66, 321370), (70, 303006), (77, 275460), (84, 252505), (105, 202004), (110, 192822), (132, 160685), (140, 151503), (154, 137730), (165, 128548), (210, 101002), (220, 96411), (231, 91820), (308, 68865), (330, 64274), (385, 55092), (420, 50501), (462, 45910), (660, 32137), (770, 27546), (924, 22955), (1155, 18364), (1540, 13773), (2310, 9182), (4591, 4620)]