21319732

素因数分解:

$2^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{1367}}^1$

素因数の和:1935

約数の個数: 24

約数和(自身を含む): 42747264

約数和(自身を除く): 21427532

約数列:

[1, 2, 4, 7, 14, 28, 557, 1114, 1367, 2228, 2734, 3899, 5468, 7798, 9569, 15596, 19138, 38276, 761419, 1522838, 3045676, 5329933, 10659866, 21319732]

約数ペア:

[(1, 21319732), (2, 10659866), (4, 5329933), (7, 3045676), (14, 1522838), (28, 761419), (557, 38276), (1114, 19138), (1367, 15596), (2228, 9569), (2734, 7798), (3899, 5468)]