1978394019

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4958381}}^1$

素因数の和:4958410

約数の個数: 16

約数和(自身を含む): 3173364480

約数和(自身を除く): 1194970461

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 4958381, 14875143, 34708667, 94209239, 104126001, 282627717, 659464673, 1978394019]

約数ペア:

[(1, 1978394019), (3, 659464673), (7, 282627717), (19, 104126001), (21, 94209239), (57, 34708667), (133, 14875143), (399, 4958381)]