21809144450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{545911}}^1$

素因数の和:545987

約数の個数: 48

約数和(自身を含む): 43865121024

約数和(自身を除く): 22055976574

約数列:

[1, 2, 5, 10, 17, 25, 34, 47, 50, 85, 94, 170, 235, 425, 470, 799, 850, 1175, 1598, 2350, 3995, 7990, 19975, 39950, 545911, 1091822, 2729555, 5459110, 9280487, 13647775, 18560974, 25657817, 27295550, 46402435, 51315634, 92804870, 128289085, 232012175, 256578170, 436182889, 464024350, 641445425, 872365778, 1282890850, 2180914445, 4361828890, 10904572225, 21809144450]

約数ペア:

[(1, 21809144450), (2, 10904572225), (5, 4361828890), (10, 2180914445), (17, 1282890850), (25, 872365778), (34, 641445425), (47, 464024350), (50, 436182889), (85, 256578170), (94, 232012175), (170, 128289085), (235, 92804870), (425, 51315634), (470, 46402435), (799, 27295550), (850, 25657817), (1175, 18560974), (1598, 13647775), (2350, 9280487), (3995, 5459110), (7990, 2729555), (19975, 1091822), (39950, 545911)]