16985241

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 32112640

約数和(自身を除く): 15127399

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 91, 93, 117, 189, 217, 223, 273, 279, 351, 403, 651, 669, 819, 837, 1209, 1561, 1953, 2007, 2457, 2821, 2899, 3627, 4683, 5859, 6021, 6913, 8463, 8697, 10881, 14049, 20293, 20739, 25389, 26091, 42147, 48391, 60879, 62217, 76167, 78273, 89869, 145173, 182637, 186651, 269607, 435519, 547911, 629083, 808821, 1306557, 1887249, 2426463, 5661747, 16985241]

約数ペア:

[(1, 16985241), (3, 5661747), (7, 2426463), (9, 1887249), (13, 1306557), (21, 808821), (27, 629083), (31, 547911), (39, 435519), (63, 269607), (91, 186651), (93, 182637), (117, 145173), (189, 89869), (217, 78273), (223, 76167), (273, 62217), (279, 60879), (351, 48391), (403, 42147), (651, 26091), (669, 25389), (819, 20739), (837, 20293), (1209, 14049), (1561, 10881), (1953, 8697), (2007, 8463), (2457, 6913), (2821, 6021), (2899, 5859), (3627, 4683)]