28221228

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2113}}^1$

素因数の和:2183

約数の個数: 72

約数和(自身を含む): 83105568

約数和(自身を除く): 54884340

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 53, 63, 84, 106, 126, 159, 212, 252, 318, 371, 477, 636, 742, 954, 1113, 1484, 1908, 2113, 2226, 3339, 4226, 4452, 6339, 6678, 8452, 12678, 13356, 14791, 19017, 25356, 29582, 38034, 44373, 59164, 76068, 88746, 111989, 133119, 177492, 223978, 266238, 335967, 447956, 532476, 671934, 783923, 1007901, 1343868, 1567846, 2015802, 2351769, 3135692, 4031604, 4703538, 7055307, 9407076, 14110614, 28221228]

約数ペア:

[(1, 28221228), (2, 14110614), (3, 9407076), (4, 7055307), (6, 4703538), (7, 4031604), (9, 3135692), (12, 2351769), (14, 2015802), (18, 1567846), (21, 1343868), (28, 1007901), (36, 783923), (42, 671934), (53, 532476), (63, 447956), (84, 335967), (106, 266238), (126, 223978), (159, 177492), (212, 133119), (252, 111989), (318, 88746), (371, 76068), (477, 59164), (636, 44373), (742, 38034), (954, 29582), (1113, 25356), (1484, 19017), (1908, 14791), (2113, 13356), (2226, 12678), (3339, 8452), (4226, 6678), (4452, 6339)]