12851559

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1489}}^1$

素因数の和:1639

約数の個数: 24

約数和(自身を含む): 21384480

約数和(自身を除く): 8532921

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 1489, 2877, 4467, 8631, 10423, 13401, 31269, 93807, 203993, 611979, 1427951, 1835937, 4283853, 12851559]

約数ペア:

[(1, 12851559), (3, 4283853), (7, 1835937), (9, 1427951), (21, 611979), (63, 203993), (137, 93807), (411, 31269), (959, 13401), (1233, 10423), (1489, 8631), (2877, 4467)]