19211457

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{787}}^1$

素因数の和:972

約数の個数: 16

約数和(自身を含む): 26224640

約数和(自身を除く): 7013183

約数列:

[1, 3, 79, 103, 237, 309, 787, 2361, 8137, 24411, 62173, 81061, 186519, 243183, 6403819, 19211457]

約数ペア:

[(1, 19211457), (3, 6403819), (79, 243183), (103, 186519), (237, 81061), (309, 62173), (787, 24411), (2361, 8137)]