21133431

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 36560160

約数和(自身を除く): 15426729

約数列:

[1, 3, 9, 11, 17, 29, 33, 51, 87, 99, 153, 187, 261, 319, 433, 493, 561, 957, 1299, 1479, 1683, 2871, 3897, 4437, 4763, 5423, 7361, 12557, 14289, 16269, 22083, 37671, 42867, 48807, 66249, 80971, 113013, 138127, 213469, 242913, 414381, 640407, 728739, 1243143, 1921221, 2348159, 7044477, 21133431]

約数ペア:

[(1, 21133431), (3, 7044477), (9, 2348159), (11, 1921221), (17, 1243143), (29, 728739), (33, 640407), (51, 414381), (87, 242913), (99, 213469), (153, 138127), (187, 113013), (261, 80971), (319, 66249), (433, 48807), (493, 42867), (561, 37671), (957, 22083), (1299, 16269), (1479, 14289), (1683, 12557), (2871, 7361), (3897, 5423), (4437, 4763)]