18736245

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 96

約数和(自身を含む): 38814720

約数和(自身を除く): 20078475

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 37, 45, 55, 93, 99, 111, 121, 135, 155, 165, 185, 279, 297, 333, 341, 363, 407, 465, 495, 555, 605, 837, 999, 1023, 1089, 1147, 1221, 1395, 1485, 1665, 1705, 1815, 2035, 3069, 3267, 3441, 3663, 3751, 4185, 4477, 4995, 5115, 5445, 5735, 6105, 9207, 10323, 10989, 11253, 12617, 13431, 15345, 16335, 17205, 18315, 18755, 22385, 30969, 33759, 37851, 40293, 46035, 51615, 54945, 56265, 63085, 67155, 101277, 113553, 120879, 138787, 154845, 168795, 189255, 201465, 340659, 416361, 506385, 567765, 604395, 693935, 1249083, 1703295, 2081805, 3747249, 6245415, 18736245]

約数ペア:

[(1, 18736245), (3, 6245415), (5, 3747249), (9, 2081805), (11, 1703295), (15, 1249083), (27, 693935), (31, 604395), (33, 567765), (37, 506385), (45, 416361), (55, 340659), (93, 201465), (99, 189255), (111, 168795), (121, 154845), (135, 138787), (155, 120879), (165, 113553), (185, 101277), (279, 67155), (297, 63085), (333, 56265), (341, 54945), (363, 51615), (407, 46035), (465, 40293), (495, 37851), (555, 33759), (605, 30969), (837, 22385), (999, 18755), (1023, 18315), (1089, 17205), (1147, 16335), (1221, 15345), (1395, 13431), (1485, 12617), (1665, 11253), (1705, 10989), (1815, 10323), (2035, 9207), (3069, 6105), (3267, 5735), (3441, 5445), (3663, 5115), (3751, 4995), (4185, 4477)]