21129360

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12577}}^1$

素因数の和:12600

約数の個数: 80

約数和(自身を含む): 74864256

約数和(自身を除く): 53734896

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12577, 25154, 37731, 50308, 62885, 75462, 88039, 100616, 125770, 150924, 176078, 188655, 201232, 251540, 264117, 301848, 352156, 377310, 440195, 503080, 528234, 603696, 704312, 754620, 880390, 1006160, 1056468, 1320585, 1408624, 1509240, 1760780, 2112936, 2641170, 3018480, 3521560, 4225872, 5282340, 7043120, 10564680, 21129360]

約数ペア:

[(1, 21129360), (2, 10564680), (3, 7043120), (4, 5282340), (5, 4225872), (6, 3521560), (7, 3018480), (8, 2641170), (10, 2112936), (12, 1760780), (14, 1509240), (15, 1408624), (16, 1320585), (20, 1056468), (21, 1006160), (24, 880390), (28, 754620), (30, 704312), (35, 603696), (40, 528234), (42, 503080), (48, 440195), (56, 377310), (60, 352156), (70, 301848), (80, 264117), (84, 251540), (105, 201232), (112, 188655), (120, 176078), (140, 150924), (168, 125770), (210, 100616), (240, 88039), (280, 75462), (336, 62885), (420, 50308), (560, 37731), (840, 25154), (1680, 12577)]