21398254

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{233}}^1\times {\mathrm{977}}^1$

素因数の和:1259

約数の個数: 16

約数和(自身を含む): 32954688

約数和(自身を除く): 11556434

約数列:

[1, 2, 47, 94, 233, 466, 977, 1954, 10951, 21902, 45919, 91838, 227641, 455282, 10699127, 21398254]

約数ペア:

[(1, 21398254), (2, 10699127), (47, 455282), (94, 227641), (233, 91838), (466, 45919), (977, 21902), (1954, 10951)]