12540843

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1453}}^1$

素因数の和:1603

約数の個数: 24

約数和(自身を含む): 20867808

約数和(自身を除く): 8326965

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 1453, 2877, 4359, 8631, 10171, 13077, 30513, 91539, 199061, 597183, 1393427, 1791549, 4180281, 12540843]

約数ペア:

[(1, 12540843), (3, 4180281), (7, 1791549), (9, 1393427), (21, 597183), (63, 199061), (137, 91539), (411, 30513), (959, 13077), (1233, 10171), (1453, 8631), (2877, 4359)]