81121572

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{321911}}^1$

素因数の和:321928

約数の個数: 36

約数和(自身を含む): 234351936

約数和(自身を除く): 153230364

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 321911, 643822, 965733, 1287644, 1931466, 2253377, 2897199, 3862932, 4506754, 5794398, 6760131, 9013508, 11588796, 13520262, 20280393, 27040524, 40560786, 81121572]

約数ペア:

[(1, 81121572), (2, 40560786), (3, 27040524), (4, 20280393), (6, 13520262), (7, 11588796), (9, 9013508), (12, 6760131), (14, 5794398), (18, 4506754), (21, 3862932), (28, 2897199), (36, 2253377), (42, 1931466), (63, 1287644), (84, 965733), (126, 643822), (252, 321911)]