18922275

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:150

約数の個数: 72

約数和(自身を含む): 37306640

約数和(自身を除く): 18384365

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 97, 135, 153, 225, 255, 289, 291, 425, 459, 485, 675, 765, 867, 873, 1275, 1445, 1455, 1649, 2295, 2425, 2601, 2619, 3825, 4335, 4365, 4947, 7225, 7275, 7803, 8245, 11475, 13005, 13095, 14841, 21675, 21825, 24735, 28033, 39015, 41225, 44523, 65025, 65475, 74205, 84099, 123675, 140165, 195075, 222615, 252297, 371025, 420495, 700825, 756891, 1113075, 1261485, 2102475, 3784455, 6307425, 18922275]

約数ペア:

[(1, 18922275), (3, 6307425), (5, 3784455), (9, 2102475), (15, 1261485), (17, 1113075), (25, 756891), (27, 700825), (45, 420495), (51, 371025), (75, 252297), (85, 222615), (97, 195075), (135, 140165), (153, 123675), (225, 84099), (255, 74205), (289, 65475), (291, 65025), (425, 44523), (459, 41225), (485, 39015), (675, 28033), (765, 24735), (867, 21825), (873, 21675), (1275, 14841), (1445, 13095), (1455, 13005), (1649, 11475), (2295, 8245), (2425, 7803), (2601, 7275), (2619, 7225), (3825, 4947), (4335, 4365)]