7861581

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 14501760

約数和(自身を除く): 6640179

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 331, 377, 609, 819, 993, 1131, 1827, 2317, 2639, 2979, 3393, 4303, 6951, 7917, 9599, 12909, 20853, 23751, 28797, 30121, 38727, 67193, 86391, 90363, 124787, 201579, 271089, 374361, 604737, 873509, 1123083, 2620527, 7861581]

約数ペア:

[(1, 7861581), (3, 2620527), (7, 1123083), (9, 873509), (13, 604737), (21, 374361), (29, 271089), (39, 201579), (63, 124787), (87, 90363), (91, 86391), (117, 67193), (203, 38727), (261, 30121), (273, 28797), (331, 23751), (377, 20853), (609, 12909), (819, 9599), (993, 7917), (1131, 6951), (1827, 4303), (2317, 3393), (2639, 2979)]