19802307

素因数分解:

$3^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{4937}}^1$

素因数の和:5138

約数の個数: 16

約数和(自身を含む): 30339072

約数和(自身を除く): 10536765

約数列:

[1, 3, 7, 21, 191, 573, 1337, 4011, 4937, 14811, 34559, 103677, 942967, 2828901, 6600769, 19802307]

約数ペア:

[(1, 19802307), (3, 6600769), (7, 2828901), (21, 942967), (191, 103677), (573, 34559), (1337, 14811), (4011, 4937)]