21288344

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4937}}^1$

素因数の和:4968

約数の個数: 48

約数和(自身を含む): 50663880

約数和(自身を除く): 29375536

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 392, 539, 616, 1078, 2156, 4312, 4937, 9874, 19748, 34559, 39496, 54307, 69118, 108614, 138236, 217228, 241913, 276472, 380149, 434456, 483826, 760298, 967652, 1520596, 1935304, 2661043, 3041192, 5322086, 10644172, 21288344]

約数ペア:

[(1, 21288344), (2, 10644172), (4, 5322086), (7, 3041192), (8, 2661043), (11, 1935304), (14, 1520596), (22, 967652), (28, 760298), (44, 483826), (49, 434456), (56, 380149), (77, 276472), (88, 241913), (98, 217228), (154, 138236), (196, 108614), (308, 69118), (392, 54307), (539, 39496), (616, 34559), (1078, 19748), (2156, 9874), (4312, 4937)]