21246960

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12647}}^1$

素因数の和:12670

約数の個数: 80

約数和(自身を含む): 75280896

約数和(自身を除く): 54033936

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12647, 25294, 37941, 50588, 63235, 75882, 88529, 101176, 126470, 151764, 177058, 189705, 202352, 252940, 265587, 303528, 354116, 379410, 442645, 505880, 531174, 607056, 708232, 758820, 885290, 1011760, 1062348, 1327935, 1416464, 1517640, 1770580, 2124696, 2655870, 3035280, 3541160, 4249392, 5311740, 7082320, 10623480, 21246960]

約数ペア:

[(1, 21246960), (2, 10623480), (3, 7082320), (4, 5311740), (5, 4249392), (6, 3541160), (7, 3035280), (8, 2655870), (10, 2124696), (12, 1770580), (14, 1517640), (15, 1416464), (16, 1327935), (20, 1062348), (21, 1011760), (24, 885290), (28, 758820), (30, 708232), (35, 607056), (40, 531174), (42, 505880), (48, 442645), (56, 379410), (60, 354116), (70, 303528), (80, 265587), (84, 252940), (105, 202352), (112, 189705), (120, 177058), (140, 151764), (168, 126470), (210, 101176), (240, 88529), (280, 75882), (336, 63235), (420, 50588), (560, 37941), (840, 25294), (1680, 12647)]