21200690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 45722880

約数和(自身を除く): 24522190

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 83, 89, 166, 178, 205, 287, 410, 415, 445, 574, 581, 623, 830, 890, 1162, 1246, 1435, 2870, 2905, 3115, 3403, 3649, 5810, 6230, 6806, 7298, 7387, 14774, 17015, 18245, 23821, 25543, 34030, 36490, 36935, 47642, 51086, 51709, 73870, 103418, 119105, 127715, 238210, 255430, 258545, 302867, 517090, 605734, 1514335, 2120069, 3028670, 4240138, 10600345, 21200690]

約数ペア:

[(1, 21200690), (2, 10600345), (5, 4240138), (7, 3028670), (10, 2120069), (14, 1514335), (35, 605734), (41, 517090), (70, 302867), (82, 258545), (83, 255430), (89, 238210), (166, 127715), (178, 119105), (205, 103418), (287, 73870), (410, 51709), (415, 51086), (445, 47642), (574, 36935), (581, 36490), (623, 34030), (830, 25543), (890, 23821), (1162, 18245), (1246, 17015), (1435, 14774), (2870, 7387), (2905, 7298), (3115, 6806), (3403, 6230), (3649, 5810)]