20804532

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{857}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 59002944

約数和(自身を除く): 38198412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 51, 68, 84, 102, 119, 204, 238, 289, 357, 476, 578, 714, 857, 867, 1156, 1428, 1714, 1734, 2023, 2571, 3428, 3468, 4046, 5142, 5999, 6069, 8092, 10284, 11998, 12138, 14569, 17997, 23996, 24276, 29138, 35994, 43707, 58276, 71988, 87414, 101983, 174828, 203966, 247673, 305949, 407932, 495346, 611898, 743019, 990692, 1223796, 1486038, 1733711, 2972076, 3467422, 5201133, 6934844, 10402266, 20804532]

約数ペア:

[(1, 20804532), (2, 10402266), (3, 6934844), (4, 5201133), (6, 3467422), (7, 2972076), (12, 1733711), (14, 1486038), (17, 1223796), (21, 990692), (28, 743019), (34, 611898), (42, 495346), (51, 407932), (68, 305949), (84, 247673), (102, 203966), (119, 174828), (204, 101983), (238, 87414), (289, 71988), (357, 58276), (476, 43707), (578, 35994), (714, 29138), (857, 24276), (867, 23996), (1156, 17997), (1428, 14569), (1714, 12138), (1734, 11998), (2023, 10284), (2571, 8092), (3428, 6069), (3468, 5999), (4046, 5142)]