19886811

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2861}}^1$

素因数の和:3202

約数の個数: 16

約数和(自身を含む): 30405888

約数和(自身を除く): 10519077

約数列:

[1, 3, 7, 21, 331, 993, 2317, 2861, 6951, 8583, 20027, 60081, 946991, 2840973, 6628937, 19886811]

約数ペア:

[(1, 19886811), (3, 6628937), (7, 2840973), (21, 946991), (331, 60081), (993, 20027), (2317, 8583), (2861, 6951)]