20807766009

素因数分解:

$3^2\times {\mathrm{359}}^1\times {\mathrm{6440039}}^1$

素因数の和:6440404

約数の個数: 12

約数和(自身を含む): 30139387200

約数和(自身を除く): 9331621191

約数列:

[1, 3, 9, 359, 1077, 3231, 6440039, 19320117, 57960351, 2311974001, 6935922003, 20807766009]

約数ペア:

[(1, 20807766009), (3, 6935922003), (9, 2311974001), (359, 57960351), (1077, 19320117), (3231, 6440039)]