19937658

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{577}}^1$

素因数の和:1038

約数の個数: 32

約数和(自身を含む): 43114176

約数和(自身を除く): 23176518

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 443, 577, 886, 1154, 1329, 1731, 2658, 3462, 5759, 7501, 11518, 15002, 17277, 22503, 34554, 45006, 255611, 511222, 766833, 1533666, 3322943, 6645886, 9968829, 19937658]

約数ペア:

[(1, 19937658), (2, 9968829), (3, 6645886), (6, 3322943), (13, 1533666), (26, 766833), (39, 511222), (78, 255611), (443, 45006), (577, 34554), (886, 22503), (1154, 17277), (1329, 15002), (1731, 11518), (2658, 7501), (3462, 5759)]