21691908

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4099}}^1$

素因数の和:4126

約数の個数: 72

約数和(自身を含む): 65436000

約数和(自身を除く): 43744092

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4099, 5292, 8198, 12297, 16396, 24594, 28693, 36891, 49188, 57386, 73782, 86079, 110673, 114772, 147564, 172158, 200851, 221346, 258237, 344316, 401702, 442692, 516474, 602553, 774711, 803404, 1032948, 1205106, 1549422, 1807659, 2410212, 3098844, 3615318, 5422977, 7230636, 10845954, 21691908]

約数ペア:

[(1, 21691908), (2, 10845954), (3, 7230636), (4, 5422977), (6, 3615318), (7, 3098844), (9, 2410212), (12, 1807659), (14, 1549422), (18, 1205106), (21, 1032948), (27, 803404), (28, 774711), (36, 602553), (42, 516474), (49, 442692), (54, 401702), (63, 344316), (84, 258237), (98, 221346), (108, 200851), (126, 172158), (147, 147564), (189, 114772), (196, 110673), (252, 86079), (294, 73782), (378, 57386), (441, 49188), (588, 36891), (756, 28693), (882, 24594), (1323, 16396), (1764, 12297), (2646, 8198), (4099, 5292)]