18819405

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:96

約数の個数: 128

約数和(自身を含む): 41472000

約数和(自身を除く): 22652595

約数列:

[1, 3, 5, 9, 11, 15, 19, 23, 27, 29, 33, 45, 55, 57, 69, 87, 95, 99, 115, 135, 145, 165, 171, 207, 209, 253, 261, 285, 297, 319, 345, 435, 437, 495, 513, 551, 621, 627, 667, 759, 783, 855, 957, 1035, 1045, 1265, 1305, 1311, 1485, 1595, 1653, 1881, 2001, 2185, 2277, 2565, 2755, 2871, 3105, 3135, 3335, 3795, 3915, 3933, 4785, 4807, 4959, 5643, 6003, 6061, 6555, 6831, 7337, 8265, 8613, 9405, 10005, 11385, 11799, 12673, 14355, 14421, 14877, 18009, 18183, 19665, 22011, 24035, 24795, 28215, 30015, 30305, 34155, 36685, 38019, 43065, 43263, 54549, 58995, 63365, 66033, 72105, 74385, 90045, 90915, 110055, 114057, 129789, 139403, 163647, 190095, 198099, 216315, 272745, 330165, 342171, 418209, 570285, 648945, 697015, 818235, 990495, 1254627, 1710855, 2091045, 3763881, 6273135, 18819405]

約数ペア:

[(1, 18819405), (3, 6273135), (5, 3763881), (9, 2091045), (11, 1710855), (15, 1254627), (19, 990495), (23, 818235), (27, 697015), (29, 648945), (33, 570285), (45, 418209), (55, 342171), (57, 330165), (69, 272745), (87, 216315), (95, 198099), (99, 190095), (115, 163647), (135, 139403), (145, 129789), (165, 114057), (171, 110055), (207, 90915), (209, 90045), (253, 74385), (261, 72105), (285, 66033), (297, 63365), (319, 58995), (345, 54549), (435, 43263), (437, 43065), (495, 38019), (513, 36685), (551, 34155), (621, 30305), (627, 30015), (667, 28215), (759, 24795), (783, 24035), (855, 22011), (957, 19665), (1035, 18183), (1045, 18009), (1265, 14877), (1305, 14421), (1311, 14355), (1485, 12673), (1595, 11799), (1653, 11385), (1881, 10005), (2001, 9405), (2185, 8613), (2277, 8265), (2565, 7337), (2755, 6831), (2871, 6555), (3105, 6061), (3135, 6003), (3335, 5643), (3795, 4959), (3915, 4807), (3933, 4785)]