21192360

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25229}}^1$

素因数の和:25250

約数の個数: 64

約数和(自身を含む): 72662400

約数和(自身を除く): 51470040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25229, 50458, 75687, 100916, 126145, 151374, 176603, 201832, 252290, 302748, 353206, 378435, 504580, 529809, 605496, 706412, 756870, 883015, 1009160, 1059618, 1412824, 1513740, 1766030, 2119236, 2649045, 3027480, 3532060, 4238472, 5298090, 7064120, 10596180, 21192360]

約数ペア:

[(1, 21192360), (2, 10596180), (3, 7064120), (4, 5298090), (5, 4238472), (6, 3532060), (7, 3027480), (8, 2649045), (10, 2119236), (12, 1766030), (14, 1513740), (15, 1412824), (20, 1059618), (21, 1009160), (24, 883015), (28, 756870), (30, 706412), (35, 605496), (40, 529809), (42, 504580), (56, 378435), (60, 353206), (70, 302748), (84, 252290), (105, 201832), (120, 176603), (140, 151374), (168, 126145), (210, 100916), (280, 75687), (420, 50458), (840, 25229)]