18925335

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 41041728

約数和(自身を除く): 22116393

約数列:

[1, 3, 5, 9, 11, 13, 15, 17, 33, 39, 45, 51, 55, 65, 85, 99, 117, 143, 153, 165, 173, 187, 195, 221, 255, 429, 495, 519, 561, 585, 663, 715, 765, 865, 935, 1105, 1287, 1557, 1683, 1903, 1989, 2145, 2249, 2431, 2595, 2805, 2941, 3315, 5709, 6435, 6747, 7293, 7785, 8415, 8823, 9515, 9945, 11245, 12155, 14705, 17127, 20241, 21879, 24739, 26469, 28545, 32351, 33735, 36465, 38233, 44115, 74217, 85635, 97053, 101205, 109395, 114699, 123695, 132345, 161755, 191165, 222651, 291159, 344097, 371085, 420563, 485265, 573495, 1113255, 1261689, 1455795, 1720485, 2102815, 3785067, 6308445, 18925335]

約数ペア:

[(1, 18925335), (3, 6308445), (5, 3785067), (9, 2102815), (11, 1720485), (13, 1455795), (15, 1261689), (17, 1113255), (33, 573495), (39, 485265), (45, 420563), (51, 371085), (55, 344097), (65, 291159), (85, 222651), (99, 191165), (117, 161755), (143, 132345), (153, 123695), (165, 114699), (173, 109395), (187, 101205), (195, 97053), (221, 85635), (255, 74217), (429, 44115), (495, 38233), (519, 36465), (561, 33735), (585, 32351), (663, 28545), (715, 26469), (765, 24739), (865, 21879), (935, 20241), (1105, 17127), (1287, 14705), (1557, 12155), (1683, 11245), (1903, 9945), (1989, 9515), (2145, 8823), (2249, 8415), (2431, 7785), (2595, 7293), (2805, 6747), (2941, 6435), (3315, 5709)]