11891271

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1973}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 18903024

約数和(自身を除く): 7011753

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 1973, 2009, 5919, 6027, 13811, 41433, 80893, 96677, 242679, 290031, 566251, 1698753, 3963757, 11891271]

約数ペア:

[(1, 11891271), (3, 3963757), (7, 1698753), (21, 566251), (41, 290031), (49, 242679), (123, 96677), (147, 80893), (287, 41433), (861, 13811), (1973, 6027), (2009, 5919)]