21008528

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2383}}^1$

素因数の和:2439

約数の個数: 40

約数和(自身を含む): 44342400

約数和(自身を除く): 23333872

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2383, 4408, 4766, 8816, 9532, 19064, 38128, 45277, 69107, 90554, 138214, 181108, 276428, 362216, 552856, 724432, 1105712, 1313033, 2626066, 5252132, 10504264, 21008528]

約数ペア:

[(1, 21008528), (2, 10504264), (4, 5252132), (8, 2626066), (16, 1313033), (19, 1105712), (29, 724432), (38, 552856), (58, 362216), (76, 276428), (116, 181108), (152, 138214), (232, 90554), (304, 69107), (464, 45277), (551, 38128), (1102, 19064), (2204, 9532), (2383, 8816), (4408, 4766)]