12880329

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 22318464

約数和(自身を除く): 9438135

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 121, 137, 231, 259, 363, 407, 411, 777, 847, 959, 1221, 1507, 2541, 2849, 2877, 4477, 4521, 5069, 8547, 10549, 13431, 15207, 16577, 31339, 31647, 35483, 49731, 55759, 94017, 106449, 116039, 167277, 348117, 390313, 613349, 1170939, 1840047, 4293443, 12880329]

約数ペア:

[(1, 12880329), (3, 4293443), (7, 1840047), (11, 1170939), (21, 613349), (33, 390313), (37, 348117), (77, 167277), (111, 116039), (121, 106449), (137, 94017), (231, 55759), (259, 49731), (363, 35483), (407, 31647), (411, 31339), (777, 16577), (847, 15207), (959, 13431), (1221, 10549), (1507, 8547), (2541, 5069), (2849, 4521), (2877, 4477)]