19898373

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 30523392

約数和(自身を除く): 10625019

約数列:

[1, 3, 11, 31, 33, 53, 93, 159, 341, 367, 583, 1023, 1101, 1643, 1749, 4037, 4929, 11377, 12111, 18073, 19451, 34131, 54219, 58353, 125147, 213961, 375441, 602981, 641883, 1808943, 6632791, 19898373]

約数ペア:

[(1, 19898373), (3, 6632791), (11, 1808943), (31, 641883), (33, 602981), (53, 375441), (93, 213961), (159, 125147), (341, 58353), (367, 54219), (583, 34131), (1023, 19451), (1101, 18073), (1643, 12111), (1749, 11377), (4037, 4929)]