21756182

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 16735018

約数列:

[1, 2, 7, 14, 53, 106, 109, 218, 269, 371, 538, 742, 763, 1526, 1883, 3766, 5777, 11554, 14257, 28514, 29321, 40439, 58642, 80878, 99799, 199598, 205247, 410494, 1554013, 3108026, 10878091, 21756182]

約数ペア:

[(1, 21756182), (2, 10878091), (7, 3108026), (14, 1554013), (53, 410494), (106, 205247), (109, 199598), (218, 99799), (269, 80878), (371, 58642), (538, 40439), (742, 29321), (763, 28514), (1526, 14257), (1883, 11554), (3766, 5777)]