31218759

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 53673984

約数和(自身を除く): 22455225

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 127, 143, 191, 381, 429, 573, 1143, 1287, 1397, 1651, 1719, 2101, 2483, 4191, 4953, 6303, 7449, 12573, 14859, 18161, 18909, 22347, 24257, 27313, 54483, 72771, 81939, 163449, 218313, 245817, 266827, 315341, 800481, 946023, 2401443, 2838069, 3468751, 10406253, 31218759]

約数ペア:

[(1, 31218759), (3, 10406253), (9, 3468751), (11, 2838069), (13, 2401443), (33, 946023), (39, 800481), (99, 315341), (117, 266827), (127, 245817), (143, 218313), (191, 163449), (381, 81939), (429, 72771), (573, 54483), (1143, 27313), (1287, 24257), (1397, 22347), (1651, 18909), (1719, 18161), (2101, 14859), (2483, 12573), (4191, 7449), (4953, 6303)]