19882341

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12919}}^1$

素因数の和:12950

約数の個数: 20

約数和(自身を含む): 31266400

約数和(自身を除く): 11384059

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12919, 38757, 116271, 245461, 348813, 736383, 1046439, 2209149, 6627447, 19882341]

約数ペア:

[(1, 19882341), (3, 6627447), (9, 2209149), (19, 1046439), (27, 736383), (57, 348813), (81, 245461), (171, 116271), (513, 38757), (1539, 12919)]