21317492735

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1\times {\mathrm{3821}}^1$

素因数の和:4224

約数の個数: 64

約数和(自身を含む): 32740291584

約数和(自身を除く): 11422798849

約数列:

[1, 5, 7, 11, 35, 43, 55, 77, 215, 301, 337, 385, 473, 1505, 1685, 2359, 2365, 3311, 3707, 3821, 11795, 14491, 16555, 18535, 19105, 25949, 26747, 42031, 72455, 101437, 129745, 133735, 159401, 164303, 210155, 294217, 507185, 797005, 821515, 1115807, 1150121, 1287677, 1471085, 1807333, 5579035, 5750605, 6438385, 9013739, 9036665, 12651331, 14164447, 45068695, 55370111, 63256655, 70822235, 99151129, 276850555, 387590777, 495755645, 609071221, 1937953885, 3045356105, 4263498547, 21317492735]

約数ペア:

[(1, 21317492735), (5, 4263498547), (7, 3045356105), (11, 1937953885), (35, 609071221), (43, 495755645), (55, 387590777), (77, 276850555), (215, 99151129), (301, 70822235), (337, 63256655), (385, 55370111), (473, 45068695), (1505, 14164447), (1685, 12651331), (2359, 9036665), (2365, 9013739), (3311, 6438385), (3707, 5750605), (3821, 5579035), (11795, 1807333), (14491, 1471085), (16555, 1287677), (18535, 1150121), (19105, 1115807), (25949, 821515), (26747, 797005), (42031, 507185), (72455, 294217), (101437, 210155), (129745, 164303), (133735, 159401)]