21240612

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{5413}}^1$

素因数の和:5532

約数の個数: 36

約数和(自身を含む): 54194140

約数和(自身を除く): 32953528

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 3924, 5413, 10826, 16239, 21652, 32478, 48717, 64956, 97434, 194868, 590017, 1180034, 1770051, 2360068, 3540102, 5310153, 7080204, 10620306, 21240612]

約数ペア:

[(1, 21240612), (2, 10620306), (3, 7080204), (4, 5310153), (6, 3540102), (9, 2360068), (12, 1770051), (18, 1180034), (36, 590017), (109, 194868), (218, 97434), (327, 64956), (436, 48717), (654, 32478), (981, 21652), (1308, 16239), (1962, 10826), (3924, 5413)]