211256829

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^2\times {\mathrm{83}}^1$

素因数の和:236

約数の個数: 60

約数和(自身を含む): 370538784

約数和(自身を除く): 159281955

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 83, 189, 201, 249, 469, 567, 581, 603, 747, 1407, 1743, 1809, 2241, 4221, 4489, 5229, 5427, 5561, 6723, 12663, 13467, 15687, 16683, 31423, 37989, 38927, 40401, 47061, 50049, 94269, 116781, 121203, 150147, 282807, 350343, 363609, 372587, 450441, 848421, 1051029, 1117761, 2545263, 2608109, 3153087, 3353283, 7824327, 10059849, 23472981, 30179547, 70418943, 211256829]

約数ペア:

[(1, 211256829), (3, 70418943), (7, 30179547), (9, 23472981), (21, 10059849), (27, 7824327), (63, 3353283), (67, 3153087), (81, 2608109), (83, 2545263), (189, 1117761), (201, 1051029), (249, 848421), (469, 450441), (567, 372587), (581, 363609), (603, 350343), (747, 282807), (1407, 150147), (1743, 121203), (1809, 116781), (2241, 94269), (4221, 50049), (4489, 47061), (5229, 40401), (5427, 38927), (5561, 37989), (6723, 31423), (12663, 16683), (13467, 15687)]